Updated 6 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

303new WordPress flaws this week

390,007entries in the database

190 results · page 3 of 4

Feb 16, 2023A improper neutralization of crlf sequences in http headers ('http response splitting') vulnerability in Fortinet FortiOS 7.2.0 through 7.2.2, FortiOS 7.0.0 thrCVE-2022-42472 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.2
A improper neutralization of crlf sequences in http headers ('http response splitting') vulnerability in Fortinet FortiOS 7.2.0 through 7.2.2, FortiOS 7.0.0 through 7.0.8, FortiOS 6.4.0 through 6.4.12, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy 7.2.0 through 7.2.1, FortiProxy 7.0.0 through 7.0.7, FortiProxy 2.0.0 through 2.0.10, FortiProxy 1.2 all versions, FortiProxy 01.02 all versions, FortiProxy 1.1 all versions, FortiProxy 01.01 all versions may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.
Product
FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Feb 16, 2023A relative path traversal vulnerability [CWE-23] in Fortinet FortiOS version 7.2.0 through 7.2.2, 7.0.0 through 7.0.8 and before 6.4.10, FortiProxy version 7.2.CVE-2022-41335 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 8.8
A relative path traversal vulnerability [CWE-23] in Fortinet FortiOS version 7.2.0 through 7.2.2, 7.0.0 through 7.0.8 and before 6.4.10, FortiProxy version 7.2.0 through 7.2.1, 7.0.0 through 7.0.7 and before 2.0.10, FortiSwitchManager 7.2.0 and before 7.0.0 allows an authenticated attacker to read and write files on the underlying Linux system via crafted HTTP requests.
Product
FortiSwitchManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Feb 16, 2023An improper privilege management vulnerability [CWE-269] in Fortinet FortiOS version 7.2.0 and before 7.0.7 and FortiProxy version 7.2.0 through 7.2.1 and beforCVE-2022-38378 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.2
An improper privilege management vulnerability [CWE-269] in Fortinet FortiOS version 7.2.0 and before 7.0.7 and FortiProxy version 7.2.0 through 7.2.1 and before 7.0.7 allows an attacker that has access to the admin profile section (System subsection Administrator Users) to modify their own profile and upgrade their privileges to Read Write via CLI or GUI commands.
Product
FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Feb 16, 2023A missing cryptographic steps vulnerability [CWE-325] in the functions that encrypt the DHCP and DNS keys in Fortinet FortiOS version 7.2.0, 7.0.0 through 7.0.5CVE-2022-29054 · Network & remote access · Fortinet · reported by psirt@fortinet.comLow 3.3
A missing cryptographic steps vulnerability [CWE-325] in the functions that encrypt the DHCP and DNS keys in Fortinet FortiOS version 7.2.0, 7.0.0 through 7.0.5, 6.4.0 through 6.4.9, 6.2.x and 6.0.x may allow an attacker in possession of the encrypted key to decipher it.
Product
FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jan 2, 2023Fortinet FortiOS Heap-Based Buffer Overflow VulnerabilityCVE-2022-42475 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.8
Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.
Product
FortiOS
On CISA’s list since
Dec 13, 2022 (federal fix deadline Jan 3, 2023)
What to do
Attackers are using this now. Install Fortinet’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 fortiguard.com fortiguard.com
Dec 6, 2022A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiOS 6.0.7 - 6.0.15, 6.2.2 - 6.2.12, 6.4.0 - 6.4.9 and 7.0CVE-2022-40680 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4
A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiOS 6.0.7 - 6.0.15, 6.2.2 - 6.2.12, 6.4.0 - 6.4.9 and 7.0.0 - 7.0.3 allows a privileged attacker to execute unauthorized code or commands via storing malicious payloads in replacement messages.
Product
FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Nov 2, 2022An improper access control [CWE-284] vulnerability in FortiOS version 7.2.0 and versions 7.0.0 through 7.0.7 may allow a remote authenticated read-only user to CVE-2022-38380 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.3
An improper access control [CWE-284] vulnerability in FortiOS version 7.2.0 and versions 7.0.0 through 7.0.7 may allow a remote authenticated read-only user to modify the interface settings via the API.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Nov 2, 2022An exposure of sensitive information to an unauthorized actor vulnerabiltiy [CWE-200] in FortiOS SSL-VPN versions 7.2.0, versions 7.0.0 through 7.0.6 and versioCVE-2022-35842 · Network & remote access · Fortinet · reported by psirt@fortinet.comLow 3.7
An exposure of sensitive information to an unauthorized actor vulnerabiltiy [CWE-200] in FortiOS SSL-VPN versions 7.2.0, versions 7.0.0 through 7.0.6 and versions 6.4.0 through 6.4.9 may allow a remote unauthenticated attacker to gain information about LDAP and SAML settings configured in FortiOS.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Nov 2, 2022A key management error vulnerability [CWE-320] affecting the RSA SSH host key in FortiOS 7.2.0 and below, 7.0.6 and below, 6.4.9 and below may allow an unauthenCVE-2022-30307 · Network & remote access · Fortinet · reported by psirt@fortinet.comLow 3.9
A key management error vulnerability [CWE-320] affecting the RSA SSH host key in FortiOS 7.2.0 and below, 7.0.6 and below, 6.4.9 and below may allow an unauthenticated attacker to perform a man in the middle attack.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Oct 18, 2022A access of uninitialized pointer in Fortinet FortiOS version 7.2.0, 7.0.0 through 7.0.5, 6.4.0 through 6.4.8, 6.2.0 through 6.2.10, 6.0.x, FortiProxy version 7CVE-2022-29055 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 7.5
A access of uninitialized pointer in Fortinet FortiOS version 7.2.0, 7.0.0 through 7.0.5, 6.4.0 through 6.4.8, 6.2.0 through 6.2.10, 6.0.x, FortiProxy version 7.0.0 through 7.0.4, 2.0.0 through 2.0.9, 1.2.x allows a remote unauthenticated or authenticated attacker to crash the sslvpn daemon via an HTTP GET request.
Product
Fortinet FortiOS, FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Oct 10, 2022A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiOS version 6.0.0 through 6.0.14, FortiOS version 6CVE-2021-44171 · Network & remote access · Fortinet · reported by psirt@fortinet.comCritical 9
A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiOS version 6.0.0 through 6.0.14, FortiOS version 6.2.0 through 6.2.10, FortiOS version 6.4.0 through 6.4.8, FortiOS version 7.0.0 through 7.0.3 allows attacker to execute privileged commands on a linked FortiSwitch via diagnostic CLI commands.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Sep 6, 2022A missing cryptographic steps vulnerability [CWE-325] in the functions that encrypt the keytab files in FortiOS version 7.2.0, 7.0.0 through 7.0.5 and below 7.0CVE-2022-29053 · Network & remote access · Fortinet · reported by psirt@fortinet.comLow 2.3
A missing cryptographic steps vulnerability [CWE-325] in the functions that encrypt the keytab files in FortiOS version 7.2.0, 7.0.0 through 7.0.5 and below 7.0.0 may allow an attacker in possession of the encrypted file to decipher it.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Sep 6, 2022A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 throughCVE-2022-27491 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.8
A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of "blocked page" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Sep 6, 2022An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS version 7.2.0, version 6.4.0 through 6.4.9, version 7.0.0 throuCVE-2021-43080 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.6
An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS version 7.2.0, version 6.4.0 through 6.4.9, version 7.0.0 through 7.0.5 may allow an authenticated attacker to perform a stored cross site scripting (XSS) attack through the URI parameter via the Threat Feed IP address section of the Security Fabric External connectors.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Aug 3, 2022An improper access control vulnerability [CWE-284] in FortiOS versions 6.2.0 through 6.2.11, 6.4.0 through 6.4.8 and 7.0.0 through 7.0.5 may allow an authenticaCVE-2022-23442 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.3
An improper access control vulnerability [CWE-284] in FortiOS versions 6.2.0 through 6.2.11, 6.4.0 through 6.4.8 and 7.0.0 through 7.0.5 may allow an authenticated attacker with a restricted user profile to gather the checksum information about the other VDOMs via CLI commands.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jul 18, 2022An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability in FortiOS version 7.0.5 and prior and 6.4.9 and CVE-2022-23438 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.7
An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability in FortiOS version 7.0.5 and prior and 6.4.9 and prior may allow an unauthenticated remote attacker to perform a reflected cross site scripting (XSS) attack in the captive portal authentication replacement page.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
May 24, 2022An improper certificate validation vulnerability [CWE-295] in FortiOS 6.0.0 through 6.0.14, 6.2.0 through 6.2.10, 6.4.0 through 6.4.8, 7.0.0 may allow a networkCVE-2022-22306 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 5.4
An improper certificate validation vulnerability [CWE-295] in FortiOS 6.0.0 through 6.0.14, 6.2.0 through 6.2.10, 6.4.0 through 6.4.8, 7.0.0 may allow a network adjacent and unauthenticated attacker to man-in-the-middle the communication between the FortiGate and some peers such as private SDNs and external cloud platforms.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
May 4, 2022A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.CVE-2021-43206 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.3
A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.
Product
Fortinet FortiOS, FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
May 4, 2022An improper access control vulnerability [CWE-284] in FortiOS versions 6.4.8 and prior and 7.0.3 and prior may allow an authenticated attacker with a restrictedCVE-2021-41032 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.3
An improper access control vulnerability [CWE-284] in FortiOS versions 6.4.8 and prior and 7.0.3 and prior may allow an authenticated attacker with a restricted user profile to gather sensitive information and modify the SSL-VPN tunnel status of other VDOMs using specific CLI commands.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Mar 1, 2022A improper input validation in Fortinet FortiGate version 6.4.3 and below, version 6.2.5 and below, version 6.0.11 and below, version 5.6.13 and below allows atCVE-2020-15936 · Network & remote access · Fortinet · reported by psirt@fortinet.comLow 2.6
A improper input validation in Fortinet FortiGate version 6.4.3 and below, version 6.2.5 and below, version 6.0.11 and below, version 5.6.13 and below allows attacker to disclose sensitive information via SNI Client Hello TLS packets.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Feb 23, 2022Failure to sanitize input in the SSL VPN web portal of FortiOS 5.2.10 through 5.2.15, 5.4.0 through 5.4.13, 5.6.0 through 5.6.14, 6.0.0 through 6.0.12, 6.2.0 thCVE-2021-26092 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.7
Failure to sanitize input in the SSL VPN web portal of FortiOS 5.2.10 through 5.2.15, 5.4.0 through 5.4.13, 5.6.0 through 5.6.14, 6.0.0 through 6.0.12, 6.2.0 through 6.2.7, 6.4.0 through 6.4.4; and FortiProxy 1.2.0 through 1.2.9, 2.0.0 through 2.0.1 may allow a remote unauthenticated attacker to perform a reflected Cross-site Scripting (XSS) attack by sending a request to the error page with malicious GET parameters.
Product
Fortinet FortiOS, FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jan 4, 2022Fortinet FortiOS Arbitrary File DownloadCVE-2021-44168 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedLow 3.3
Fortinet FortiOS "execute restore src-vis" downloads code without integrity checking, allowing an attacker to arbitrarily download files.
Product
FortiOS
On CISA’s list since
Dec 10, 2021 (federal fix deadline Dec 24, 2021)
What to do
Attackers are using this now. Install Fortinet’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 fortiguard.com fortiguard.com
Dec 13, 2021A Hidden Functionality in Fortinet FortiOS 7.x before 7.0.1, FortiOS 6.4.x before 6.4.7 allows attacker to Execute unauthorized code or commands via specific heCVE-2021-36169 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.2
A Hidden Functionality in Fortinet FortiOS 7.x before 7.0.1, FortiOS 6.4.x before 6.4.7 allows attacker to Execute unauthorized code or commands via specific hex read/write operations.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Dec 8, 2021A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and 6.0CVE-2021-36173 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 8
A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and 6.0.0 through 6.0.13 may allow an attacker to execute arbitrary code via specially crafted installation images.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Dec 8, 2021A relative path traversal [CWE-23] vulnerabiltiy in FortiOS versions 7.0.0 and 7.0.1 and FortiProxy verison 7.0.0 may allow an unauthenticated, unauthorized attCVE-2021-41024 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 7.5
A relative path traversal [CWE-23] vulnerabiltiy in FortiOS versions 7.0.0 and 7.0.1 and FortiProxy verison 7.0.0 may allow an unauthenticated, unauthorized attacker to inject path traversal character sequences to disclose sensitive information of the server via the GET request of the login page.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Dec 8, 2021An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt contrCVE-2021-26109 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 8.1
An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Dec 8, 2021A use of hard-coded cryptographic key vulnerability in the SSLVPN of FortiOS before 7.0.1 may allow an attacker to retrieve the key by reverse engineering.CVE-2021-26108 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 7.5
A use of hard-coded cryptographic key vulnerability in the SSLVPN of FortiOS before 7.0.1 may allow an attacker to retrieve the key by reverse engineering.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Dec 8, 2021An insufficient verification of data authenticity vulnerability (CWE-345) in the user interface of FortiProxy verison 2.0.3 and below, 1.2.11 and below and FortCVE-2021-26103 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.3
An insufficient verification of data authenticity vulnerability (CWE-345) in the user interface of FortiProxy verison 2.0.3 and below, 1.2.11 and below and FortiGate verison 7.0.0, 6.4.6 and below, 6.2.9 and below of SSL VPN portal may allow a remote, unauthenticated attacker to conduct a cross-site request forgery (CSRF) attack . Only SSL VPN in web mode or full mode are impacted by this vulnerability.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Dec 8, 2021An improper access control vulnerability [CWE-284] in FortiOS autod daemon 7.0.0, 6.4.6 and below, 6.2.9 and below, 6.0.12 and below and FortiProxy 2.0.1 and beCVE-2021-26110 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 7.8
An improper access control vulnerability [CWE-284] in FortiOS autod daemon 7.0.0, 6.4.6 and below, 6.2.9 and below, 6.0.12 and below and FortiProxy 2.0.1 and below, 1.2.9 and below may allow an authenticated low-privileged attacker to escalate their privileges to super_admin via a specific crafted configuration of fabric automation CLI script and auto-script features.
Product
Fortinet FortiOS, FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Nov 17, 2021An exposure of sensitive information to an unauthorized actor vulnerability in FortiOS CLI 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, 6.0.x and 5.6.x may CVE-2021-32600 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 5
An exposure of sensitive information to an unauthorized actor vulnerability in FortiOS CLI 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, 6.0.x and 5.6.x may allow a local and authenticated user assigned to a specific VDOM to retrieve other VDOMs information such as the admin account list and the network interface list.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Nov 2, 2021An improper validation of certificate with host mismatch [CWE-297] vulnerability in FortiOS versions 6.4.6 and below may allow the connection to a malicious LDACVE-2021-41019 · Network & remote access · Fortinet · reported by psirt@fortinet.comLow 3.5
An improper validation of certificate with host mismatch [CWE-297] vulnerability in FortiOS versions 6.4.6 and below may allow the connection to a malicious LDAP server via options in GUI, leading to disclosure of sensitive information, such as AD credentials.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Aug 4, 2021A buffer underwrite vulnerability in the firmware verification routine of FortiOS before 7.0.1 may allow an attacker located in the adjacent network to potentiaCVE-2021-24018 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.3
A buffer underwrite vulnerability in the firmware verification routine of FortiOS before 7.0.1 may allow an attacker located in the adjacent network to potentially execute arbitrary code via a specifically crafted firmware image.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jun 2, 2021An improper following of a certificate's chain of trust vulnerability in FortiGate versions 6.4.0 to 6.4.4 may allow an LDAP user to connect to SSLVPN with any CVE-2021-24012 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.5
An improper following of a certificate's chain of trust vulnerability in FortiGate versions 6.4.0 to 6.4.4 may allow an LDAP user to connect to SSLVPN with any certificate that is signed by a trusted Certificate Authority.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Mar 4, 2021When traffic other than HTTP/S (eg: SSH traffic, etc...) traverses the FortiGate in version below 6.2.5 and below 6.4.2 on port 80/443, it is not redirected to CVE-2020-15938 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4
When traffic other than HTTP/S (eg: SSH traffic, etc...) traverses the FortiGate in version below 6.2.5 and below 6.4.2 on port 80/443, it is not redirected to the transparent proxy policy for processing, as it doesn't have a valid HTTP header.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Mar 3, 2021An improper neutralization of input vulnerability in FortiGate version 6.2.x below 6.2.5 and 6.4.x below 6.4.1 may allow a remote attacker to perform a stored cCVE-2020-15937 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.7
An improper neutralization of input vulnerability in FortiGate version 6.2.x below 6.2.5 and 6.4.x below 6.4.1 may allow a remote attacker to perform a stored cross site scripting attack (XSS) via the IPS and WAF logs dashboard.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Sep 24, 2020An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoCVE-2020-12818 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 5.3
An insufficient logging vulnerability in FortiGate before 6.4.1 may allow the traffic from an unauthenticated attacker to Fortinet owned IP addresses to go unnoticed.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Aug 14, 2020Fortinet FortiOS Default Configuration VulnerabilityCVE-2019-5591 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareMedium 6.5
Fortinet FortiOS contains a default configuration vulnerability that may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the Lightweight Directory Access Protocol (LDAP) server.
Product
FortiOS
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Fortinet’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 fortiguard.com fortiguard.com
Jul 24, 2020Fortinet FortiOS SSL VPN Improper Authentication VulnerabilityCVE-2020-12812 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.8
Fortinet FortiOS SSL VPN contains an improper authentication vulnerability that may allow a user to login successfully without being prompted for the second factor of authentication (FortiToken) if they change the case in their username.
Product
FortiOS
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Fortinet’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 fortiguard.com fortiguard.com
Jun 16, 2020A cleartext storage in a file or on disk (CWE-313) vulnerability in FortiOS SSL VPN 6.2.0 through 6.2.2, 6.0.9 and earlier and FortiProxy 2.0.0, 1.2.9 and earliCVE-2019-17655 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 5.3
A cleartext storage in a file or on disk (CWE-313) vulnerability in FortiOS SSL VPN 6.2.0 through 6.2.2, 6.0.9 and earlier and FortiProxy 2.0.0, 1.2.9 and earlier may allow an attacker to retrieve a logged-in SSL VPN user's credentials should that attacker be able to read the session file stored on the targeted device's system.
Product
Fortinet FortiOS and FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Mar 15, 2020An improper input validation vulnerability in FortiOS 6.2.1, 6.2.0, 6.0.8 and below until 5.4.0 under admin webUI may allow an attacker to perform an URL redireCVE-2019-6696 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.1
An improper input validation vulnerability in FortiOS 6.2.1, 6.2.0, 6.0.8 and below until 5.4.0 under admin webUI may allow an attacker to perform an URL redirect attack via a specifically crafted request to the admin initial password change webpage.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jan 23, 2020Improper permission or value checking in the CLI console may allow a non-privileged user to obtain Fortinet FortiOS plaint text private keys of system's builtinCVE-2019-5593 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 5.5
Improper permission or value checking in the CLI console may allow a non-privileged user to obtain Fortinet FortiOS plaint text private keys of system's builtin local certificates via unsetting the keys encryption password in FortiOS 6.2.0, 6.0.0 to 6.0.6, 5.6.10 and below or for user uploaded local certificates via setting an empty password in FortiOS 6.2.1, 6.2.0, 6.0.6 and below.
Product
Fortios
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Nov 21, 2019Fortinet FortiOS Use of Hard-Coded Credentials VulnerabilityCVE-2019-6693 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareMedium 6.5
Fortinet FortiOS contains a use of hard-coded credentials vulnerability that could allow an attacker to cipher sensitive data in FortiOS configuration backup file via knowledge of the hard-coded key.
Product
FortiOS
On CISA’s list since
Jun 25, 2025 (federal fix deadline Jul 16, 2025)
What to do
Attackers are using this now. Install Fortinet’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 fortiguard.com fortiguard.com
Oct 24, 2019An Insufficient Entropy in PRNG vulnerability in Fortinet FortiOS 6.2.1, 6.2.0, 6.0.8 and below for device not enable hardware TRNG token and models not supportCVE-2019-15703 · Network & remote access · Fortinet · reported by psirt@fortinet.comHigh 7.5
An Insufficient Entropy in PRNG vulnerability in Fortinet FortiOS 6.2.1, 6.2.0, 6.0.8 and below for device not enable hardware TRNG token and models not support builtin TRNG seed allows attacker to theoretically recover the long term ECDSA secret in a TLS client with a RSA handshake and mutual ECDSA authentication via the help of flush+reload side channel attacks in FortiGate VM models only.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jun 4, 2019A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4 under SSL VPN web portal may allow an attacker to execute unauthorized mCVE-2019-5588 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.1
A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4 under SSL VPN web portal may allow an attacker to execute unauthorized malicious script code via the "err" parameter of the error process HTTP requests.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com fortiguard.com
Jun 4, 2019Lack of root file system integrity checking in Fortinet FortiOS VM application images all versions below 6.0.5 may allow attacker to implant malicious programs CVE-2019-5587 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.5
Lack of root file system integrity checking in Fortinet FortiOS VM application images all versions below 6.0.5 may allow attacker to implant malicious programs into the installing image by reassembling the image through specific methods.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com fortiguard.com
Jun 4, 2019A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 to 5.6.10, 6.0.0 to 6.0.4 under SSL VPN web portal may allow an attacker to execuCVE-2019-5586 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.1
A reflected Cross-Site-Scripting (XSS) vulnerability in Fortinet FortiOS 5.2.0 to 5.6.10, 6.0.0 to 6.0.4 under SSL VPN web portal may allow an attacker to execute unauthorized malicious script code via the "param" parameter of the error process HTTP requests.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record securityfocus.com fortiguard.com
Jun 4, 2019A Host Header Redirection vulnerability in Fortinet FortiOS all versions below 6.0.5 under SSL VPN web portal allows a remote attacker to potentially poison HTTCVE-2018-13384 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 6.1
A Host Header Redirection vulnerability in Fortinet FortiOS all versions below 6.0.5 under SSL VPN web portal allows a remote attacker to potentially poison HTTP cache and subsequently redirect SSL VPN web portal users to arbitrary web domains.
Product
Fortinet FortiOS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jun 4, 2019Fortinet FortiOS and FortiProxy Improper AuthorizationCVE-2018-13382 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.1
An Improper Authorization vulnerability in Fortinet FortiOS and FortiProxy under SSL VPN web portal allows an unauthenticated attacker to modify the password.
Product
FortiOS and FortiProxy
On CISA’s list since
Jan 10, 2022 (federal fix deadline Jul 10, 2022)
What to do
Attackers are using this now. Install Fortinet’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 fortiguard.com fortiguard.com
Jun 4, 2019A buffer overflow vulnerability in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.7, 5.4 and earlier versions and FortiProxy 2.0.0, 1.2.8 and earlier vCVE-2018-13381 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 5.3
A buffer overflow vulnerability in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.7, 5.4 and earlier versions and FortiProxy 2.0.0, 1.2.8 and earlier versions under SSL VPN web portal allows a non-authenticated attacker to perform a Denial-of-service attack via special craft message payloads.
Product
Fortinet FortiOS and FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.com
Jun 4, 2019A Cross-site Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.7, 5.4.0 to 5.4.12, 5.2 and below and Fortinet FortiProxy 2.0.0, 1.2CVE-2018-13380 · Network & remote access · Fortinet · reported by psirt@fortinet.comMedium 4.7
A Cross-site Scripting (XSS) vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.7, 5.4.0 to 5.4.12, 5.2 and below and Fortinet FortiProxy 2.0.0, 1.2.8 and below under SSL VPN web portal allows attacker to execute unauthorized malicious script code via the error or message handling parameters.
Product
Fortinet FortiOS and FortiProxy
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record fortiguard.com fortiguard.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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