Updated 3 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list

34added in the last 30 days

333new WordPress flaws this week

390,007entries in the database

254 results · page 1 of 6

Oct 14, 2026A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary CVE-2026-0320 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.1
A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS management interface. The security risk posed by this issue is significantly minimized by restricting access to the management interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 14, 2026An improper input handling vulnerability in the GlobalProtect™ gateway of Palo Alto Networks PAN-OS software enables an authenticated user to establish a GlobalCVE-2026-0319 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.9
An improper input handling vulnerability in the GlobalProtect™ gateway of Palo Alto Networks PAN-OS software enables an authenticated user to establish a GlobalProtect session using the identity of another user. Cloud NGFW and Panorama are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 14, 2026A stack-based buffer overflow vulnerability in the log processing functionality of Palo Alto Networks PAN-OS® software on Panorama enables an attacker to cause CVE-2026-0318 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.6
A stack-based buffer overflow vulnerability in the log processing functionality of Palo Alto Networks PAN-OS® software on Panorama enables an attacker to cause a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the Panorama entering maintenance mode. Cloud NGFW, Prisma® Access, and standalone PAN-OS firewalls are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 14, 2026A denial of service vulnerability in Palo Alto Networks PAN-OS software enables an authenticated user with a read-only administrator role to cause a denial of sCVE-2026-0317 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.2
A denial of service vulnerability in Palo Alto Networks PAN-OS software enables an authenticated user with a read-only administrator role to cause a denial of service (DoS) condition by sending a specially crafted API request. The security risk posed by this issue is significantly minimized by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . Cloud NGFW, Panorama, and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 14, 2026A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store or execute a JCVE-2026-0316 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.1
A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store or execute a JavaScript payload using the web interface. The security risk posed by this issue is minimized when the management interface is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS® software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by these vulnerabilities.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 14, 2026Denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoSCVE-2026-0321 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.6
Denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic to or through a dataplane interface. Repeated attempts to trigger this condition result in the firewall entering maintenance mode. Cloud NGFW and Panorama are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 14, 2026Palo Alto Networks PAN-OS Code Injection VulnerabilityCVE-2026-0322 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comExploitedHigh 8.6
Palo Alto Networks PAN-OS contains a code injection vulnerability that could allow an authenticated attacker with network access to execute arbitrary code with root privileges on the firewall.
Product
PAN-OS
On CISA’s list since
Oct 14, 2026 (federal fix deadline Oct 17, 2026)
What to do
Attackers are using this now. Install Palo Alto Networks’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog security.paloaltonetworks.com cisa.gov
Sep 10, 2026A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network acceCVE-2026-0310 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 7.2
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls. The security risk posed by this issue is minimized when the management interface is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . Panorama is impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Sep 10, 2026A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary CVE-2026-0309 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4
A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI and the device must be configured with a Luna Hardware Security Module (HSM). The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Sep 10, 2026A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store or execute a JCVE-2026-0308 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.1
A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store or execute a JavaScript payload using the web interface. This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Aug 12, 2026An information disclosure vulnerability in the URL Filtering feature of Palo Alto Networks PAN-OS® software enables an unauthenticated user with network access CVE-2026-0301 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.7
An information disclosure vulnerability in the URL Filtering feature of Palo Alto Networks PAN-OS® software enables an unauthenticated user with network access to obtain sensitive information. Panorama is not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of serCVE-2026-0287 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.6
Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic to or through a dataplane interface. Repeated attempts to trigger this condition result in the firewall entering maintenance mode. Panorama is not impacted by these vulnerabilities.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026A command injection vulnerability in the management plane of Palo Alto Networks PAN-OS® software enables an authenticated administrator to execute arbitrary OS CVE-2026-0286 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6
A command injection vulnerability in the management plane of Palo Alto Networks PAN-OS® software enables an authenticated administrator to execute arbitrary OS commands as root. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators. This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma Access® are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026A server-side request forgery (SSRF) vulnerability in Palo Alto Networks PAN-OS software enables an authenticated administrator with network access to the managCVE-2026-0285 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.7
A server-side request forgery (SSRF) vulnerability in Palo Alto Networks PAN-OS software enables an authenticated administrator with network access to the management web interface to make unauthorized requests from the firewall to internal services. The security risk posed by this issue is minimized when the management interface is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026An XML injection vulnerability in the Large Scale VPN (LSVPN) functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with netwCVE-2026-0284 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.7
An XML injection vulnerability in the Large Scale VPN (LSVPN) functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to inject malicious XML content, potentially leading to information disclosure or corruption of internal LSVPN satellite data. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access toCVE-2026-0283 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.5
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026A file deletion vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web interface to CVE-2026-0282 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 2.7
A file deletion vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web interface to delete files from a temporary directory. The security risk posed by this issue is minimized by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web intCVE-2026-0281 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 2.1
An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web interface to obtain web session tokens. This requires a legitimate user to first click on a malicious link provided by the attacker. The security risk posed by this issue is minimized by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 9, 2026An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to bypass firewall security CVE-2026-0280 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.7
An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to bypass firewall security policy enforcement, allowing network traffic that should be blocked to reach protected services. Cloud NGFW and Panorama are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jul 8, 2026Multiple buffer overflow vulnerabilities in the User-ID Terminal Server Agent (TSA) component of Palo Alto Networks PAN-OS software allow an unauthenticated attCVE-2026-0288 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 7.2
Multiple buffer overflow vulnerabilities in the User-ID Terminal Server Agent (TSA) component of Palo Alto Networks PAN-OS software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition or potentially execute arbitrary code by sending specially crafted network traffic. The security risk posed by this issue is minimized when the User-ID Terminal Server Agent connectivity is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://docs.paloaltonetworks.com/ngfw/help/10-2/user-identification/device-user-identification-terminal-services-agents#:~:text=To%20minimize%20security%20risk%2C%20restrict%20TS%20Agent%20connectivity%20to%20trusted%20internal%20IP%20addresses%20only. . Panorama is not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jun 10, 2026A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary CVE-2026-0273 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.1
A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI or Web UI. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators and by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jun 10, 2026A privilege escalation vulnerability in Palo Alto Networks PAN-OS® software allows an authenticated administrator with access to the Command Line Interface (CLICVE-2026-0272 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6
A privilege escalation vulnerability in Palo Alto Networks PAN-OS® software allows an authenticated administrator with access to the Command Line Interface (CLI) to perform actions on the device with root privileges. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators and by restricting access to the management interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jun 10, 2026A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system rebCVE-2026-0269 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.6
A memory corruption vulnerability in the processing of tunnel traffic in Palo Alto Networks PAN-OS® software allows an authenticated user to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
Jun 10, 2026A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store a JavaScript payload CVE-2026-0266 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.1
A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store a JavaScript payload using the web interface. This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of serCVE-2026-0262 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.6
Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic. Panorama and Cloud NGFW are not impacted by these vulnerabilities.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026Multiple command injection vulnerabilities in Palo Alto Networks PAN-OS® software enable an authenticated administrator to bypass system restrictions and run arCVE-2026-0261 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.1
Multiple command injection vulnerabilities in Palo Alto Networks PAN-OS® software enable an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI or Web UI. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators and by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma Access® are not impacted by these vulnerabilities.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026A server-side request forgery (SSRF) vulnerability in the IKEv2 implementation of Palo Alto Networks PAN-OS® software allows an unauthenticated attacker to causCVE-2026-0258 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.8
A server-side request forgery (SSRF) vulnerability in the IKEv2 implementation of Palo Alto Networks PAN-OS® software allows an unauthenticated attacker to cause the firewall to send network requests to unintended destinations or cause a denial of service (DoS) condition. Panorama, Cloud NGFW and Prisma® Access are not impacted by these vulnerabilities.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026Palo Alto Networks PAN-OS Authentication Bypass VulnerabilityCVE-2026-0257 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comExploitedRansomwareHigh 7.8
Palo Alto Networks PAN-OS contains an authentication bypass vulnerability that allows attackers to bypass security restrictions and establish an unauthorized VPN connection.
Product
PAN-OS
On CISA’s list since
May 29, 2026 (federal fix deadline Jun 1, 2026)
What to do
Attackers are using this now. Install Palo Alto Networks’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store a JavaScript pCVE-2026-0256 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.4
A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store a JavaScript payload using the web interface. This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication cCVE-2026-0265 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 7.2
An authentication bypass vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to bypass authentication controls when Cloud Authentication Service (CAS) is enabled. The risk is higher if CAS is enabled on the management interface and lower when any other login interfaces are used. The risk of this issue is greatly reduced if you secure access to the management web interface by restricting access to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma Access® are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network CVE-2026-0264 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 7.2
A buffer overflow vulnerability in the DNS proxy and DNS Server features of Palo Alto Networks PAN-OS® Software allows an unauthenticated attacker with network access to cause a denial of service (DoS) condition (all PAN-OS platforms except Cloud NGFW and Prisma Access) or potentially execute arbitrary code by sending specially crafted network traffic (PA-Series hardware only). Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com cert-portal.siemens.com
May 13, 2026A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacker to execute arbitCVE-2026-0263 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 7.2
A buffer overflow vulnerability in the IKEv2 processing of Palo Alto Networks PAN-OS® software allows an unauthenticated network-based attacker to execute arbitrary code with elevated privileges on the firewall, or cause a denial of service (DoS) condition. Panorama, Cloud NGFW, and Prisma® Access are not impacted by these vulnerabilities.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
May 6, 2026Palo Alto Networks PAN-OS Out-of-bounds Write VulnerabilityCVE-2026-0300 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comExploitedCritical 9.3
Palo Alto Networks PAN-OS contains an out-of-bounds write vulnerability in the User-ID Authentication Portal (aka Captive Portal) service that can allow an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets.
Product
PAN-OS
On CISA’s list since
May 6, 2026 (federal fix deadline May 9, 2026)
What to do
Attackers are using this now. Install Palo Alto Networks’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog security.paloaltonetworks.com cert-portal.siemens.com
Feb 11, 2026A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker tCVE-2026-0229 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.6
A denial-of-service (DoS) vulnerability in the Advanced DNS Security (ADNS) feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode. Cloud NGFW and Prisma Access® are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Feb 11, 2026An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even iCVE-2026-0228 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 1.3
An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Jan 15, 2026A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall.CVE-2026-0227 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.6
A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Nov 13, 2025A denial-of-service (DoS) vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to reboot a firewall by sending a specially crCVE-2025-4619 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6.6
A denial-of-service (DoS) vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to reboot a firewall by sending a specially crafted packet through the dataplane. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode. This issue is applicable to the PAN-OS software versions listed below on PA-Series firewalls, VM-Series firewalls, and Prisma® Access software. This issue does not affect Cloud NGFW. We have successfully completed the Prisma Access upgrade for all customers, with the exception of those facing issues such as conflicting maintenance windows. Remaining customers will be promptly scheduled for an upgrade through our standard upgrade process.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 9, 2025An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables an authenticated administratorCVE-2025-4615 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 5.5
An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and execute arbitrary commands. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators. Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Oct 9, 2025An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to view session tokens of users authenticaCVE-2025-4614 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.8
An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to view session tokens of users authenticated to the firewall web UI. This may allow impersonation of users whose session tokens are leaked. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators. Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Aug 13, 2025A problem with the implementation of the MACsec protocol in Palo Alto Networks PAN-OS® results in the cleartext exposure of the connectivity association key (CACVE-2025-2182 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 5.6
A problem with the implementation of the MACsec protocol in Palo Alto Networks PAN-OS® results in the cleartext exposure of the connectivity association key (CAK). This issue is only applicable to PA-7500 Series devices which are in an NGFW cluster. A user who possesses this key can read messages being sent between devices in a NGFW Cluster. There is no impact in non-clustered firewalls or clusters of firewalls that do not enable MACsec.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Jun 13, 2025An information disclosure vulnerability in the SD-WAN feature of Palo Alto Networks PAN-OS® software enables an unauthorized user to view unencrypted data sent CVE-2025-4229 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 6
An information disclosure vulnerability in the SD-WAN feature of Palo Alto Networks PAN-OS® software enables an unauthorized user to view unencrypted data sent from the firewall through the SD-WAN interface. This requires the user to be able to intercept packets sent from the firewall. Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Jun 12, 2025A command injection vulnerability in Palo Alto Networks PAN-OS® enables an authenticated administrative user to perform actions as the root user.CVE-2025-4231 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 8.6
A command injection vulnerability in Palo Alto Networks PAN-OS® enables an authenticated administrative user to perform actions as the root user. The attacker must have network access to the management web interface and successfully authenticate to exploit this issue. Cloud NGFW and Prisma Access are not impacted by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Jun 12, 2025A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary CVE-2025-4230 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 8.4
A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators. Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
May 14, 2025An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables a malicious authenticated readCVE-2025-0137 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 4.8
An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables a malicious authenticated read-write administrator to impersonate another legitimate authenticated PAN-OS administrator. The attacker must have network access to the management web interface to exploit this issue. You greatly reduce the risk of this issue by restricting access to the management web interface to only trusted internal IP addresses according to our recommended critical deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
May 14, 2025Using the AES-128-CCM algorithm for IPSec on certain Palo Alto Networks PAN-OS® firewalls (PA-7500, PA-5400, PA-5400f, PA-3400, PA-1600, PA-1400, and PA-400 SerCVE-2025-0136 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 5.3
Using the AES-128-CCM algorithm for IPSec on certain Palo Alto Networks PAN-OS® firewalls (PA-7500, PA-5400, PA-5400f, PA-3400, PA-1600, PA-1400, and PA-400 Series) leads to unencrypted data transfer to devices that are connected to the PAN-OS firewall through IPSec. This issue does not affect Cloud NGFWs, Prisma® Access instances, or PAN-OS VM-Series firewalls. NOTE: The AES-128-CCM encryption algorithm is not recommended for use.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
May 14, 2025A reflected cross-site scripting (XSS) vulnerability in the GlobalProtect™ gateway and portal features of Palo Alto Networks PAN-OS® software enables execution CVE-2025-0133 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comLow 2.7
A reflected cross-site scripting (XSS) vulnerability in the GlobalProtect™ gateway and portal features of Palo Alto Networks PAN-OS® software enables execution of malicious JavaScript in the context of an authenticated Captive Portal user's browser when they click on a specially crafted link. The primary risk is phishing attacks that can lead to credential theft—particularly if you enabled Clientless VPN. There is no availability impact to GlobalProtect features or GlobalProtect users. Attackers cannot use this vulnerability to tamper with or modify contents or configurations of the GlobalProtect portal or gateways. The integrity impact of this vulnerability is limited to enabling an attacker to create phishing and credential-stealing links that appear to be hosted on the GlobalProtect portal. For GlobalProtect users with Clientless VPN enabled, there is a limited impact on confidentiality due to inherent risks of Clientless VPN that facilitate credential theft. You can read more about this risk in the informational bulletin PAN-SA-2025-0005 https://security.paloaltonetworks.com/PAN-SA-2025-0005 https://security.paloaltonetworks.com/PAN-SA-2025-0005 . There is no impact to c
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
May 14, 2025A missing exception check in Palo Alto Networks PAN-OS® software with the web proxy feature enabled allows an unauthenticated attacker to send a burst of maliciCVE-2025-0130 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 8.2
A missing exception check in Palo Alto Networks PAN-OS® software with the web proxy feature enabled allows an unauthenticated attacker to send a burst of maliciously crafted packets that causes the firewall to become unresponsive and eventually reboot. Repeated successful attempts to trigger this condition will cause the firewall to enter maintenance mode. This issue does not affect Cloud NGFW or Prisma Access.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Apr 11, 2025A vulnerability in the Palo Alto Networks PAN-OS® software enables unlicensed administrators to view clear-text data captured using the packet capture feature CVE-2025-0123 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comMedium 5.9
A vulnerability in the Palo Alto Networks PAN-OS® software enables unlicensed administrators to view clear-text data captured using the packet capture feature https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-admin/monitoring/take-packet-captures/take-a-custom-packet-capture in decrypted HTTP/2 data streams traversing network interfaces on the firewall. HTTP/1.1 data streams are not impacted. In normal conditions, decrypted packet captures are available to firewall administrators after they obtain and install a free Decryption Port Mirror license. The license requirement ensures that this feature can only be used after approved personnel purposefully activate the license. For more information, review how to configure decryption port mirroring https://docs.paloaltonetworks.com/network-security/decryption/administration/monitoring-decryption/configure-decryption-port-mirroring . The administrator must obtain network access to the management interface (web, SSH, console, or telnet) and successfully authenticate to exploit this issue. Risk of this issue can be greatly reduced by restricting access to the management interface to only trusted administrators and from only internal
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Apr 10, 2025A denial-of-service (DoS) vulnerability in the Simple Certificate Enrollment Protocol (SCEP) authentication feature of Palo Alto Networks PAN-OS® software enablCVE-2025-0128 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 8.7
A denial-of-service (DoS) vulnerability in the Simple Certificate Enrollment Protocol (SCEP) authentication feature of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to initiate system reboots using a maliciously crafted packet. Repeated attempts to initiate a reboot causes the firewall to enter maintenance mode. Cloud NGFW is not affected by this vulnerability. Prisma® Access software is proactively patched and protected from this issue.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com
Apr 10, 2025A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary CVE-2025-0127 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comHigh 7.1
A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. This issue is only applicable to PAN-OS VM-Series. This issue does not affect firewalls that are already deployed. Cloud NGFW and Prisma® Access are not affected by this vulnerability.
Product
Cloud NGFW
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record security.paloaltonetworks.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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