Updated 4 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

324new WordPress flaws this week

390,007entries in the database

15 results

Jul 27, 2026Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor VulnerabilityCVE-2025-68686 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedMedium 5.9
Fortinet FortiOS contains an exposure of sensitive information to an unauthorized actor vulnerability. This may allow a remote unauthenticated attacker to bypass the patch developed for the symbolic link persistency mechanism observed in some post-exploit cases, via crafted HTTP requests. An attacker would need first to have compromised the product via another vulnerability, at filesystem level.
Product
FortiOS
On CISA’s list since
Jul 27, 2026 (federal fix deadline Aug 10, 2026)
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.fortinet.com cisa.gov
Jun 25, 2025Fortinet 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
Mar 18, 2025Fortinet FortiOS and FortiProxy Authentication Bypass VulnerabilityCVE-2025-24472 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareHigh 8.1
Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that allows a remote attacker to gain super-admin privileges via crafted CSF proxy requests.
Product
FortiOS and FortiProxy
On CISA’s list since
Mar 18, 2025 (federal fix deadline Apr 8, 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.fortinet.com cisa.gov
Jan 14, 2025Fortinet FortiOS and FortiProxy Authentication Bypass VulnerabilityCVE-2024-55591 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.8
Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that may allow an unauthenticated, remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.
Product
FortiOS and FortiProxy
On CISA’s list since
Jan 14, 2025 (federal fix deadline Jan 21, 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.fortinet.com cisa.gov
Feb 9, 2024Fortinet FortiOS Out-of-Bound Write VulnerabilityCVE-2024-21762 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.8
Fortinet FortiOS contains an out-of-bound write vulnerability that allows a remote unauthenticated attacker to execute code or commands via specially crafted HTTP requests.
Product
FortiOS
On CISA’s list since
Feb 9, 2024 (federal fix deadline Feb 16, 2024)
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 13, 2023Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow VulnerabilityCVE-2023-27997 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.8
Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests.
Product
FortiOS and FortiProxy SSL-VPN
On CISA’s list since
Jun 13, 2023 (federal fix deadline Jul 4, 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
Mar 14, 2023Fortinet FortiOS Path Traversal VulnerabilityCVE-2022-41328 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedMedium 6.7
Fortinet FortiOS contains a path traversal vulnerability that may allow a local privileged attacker to read and write files via crafted CLI commands.
Product
FortiOS
On CISA’s list since
Mar 14, 2023 (federal fix deadline Apr 4, 2023)
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, 2022Fortinet 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
Sep 8, 2022Fortinet FortiOS and FortiADC Improper Access Control VulnerabilityCVE-2018-13374 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareMedium 4.3
Fortinet FortiOS and FortiADC contain an improper access control vulnerability that allows attackers to obtain the LDAP server login credentials configured in FortiGate by pointing a LDAP server connectivity test request to a rogue LDAP server.
Product
FortiOS and FortiADC
On CISA’s list since
Sep 8, 2022 (federal fix deadline Sep 29, 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
Jan 10, 2022Fortinet 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
Jan 10, 2022Fortinet FortiOS and FortiProxy Out-of-bounds WriteCVE-2018-13383 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareMedium 4.3
A heap buffer overflow in Fortinet FortiOS and FortiProxy may cause the SSL VPN web service termination for logged in users.
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
Dec 10, 2021Fortinet 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
Nov 3, 2021Fortinet 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
Nov 3, 2021Fortinet 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
Nov 3, 2021Fortinet FortiOS SSL VPN Path Traversal VulnerabilityCVE-2018-13379 · Network & remote access · Fortinet · reported by psirt@fortinet.comExploitedRansomwareCritical 9.1
Fortinet FortiOS SSL VPN web portal contains a path traversal vulnerability that may allow an unauthenticated attacker to download FortiOS system files through specially crafted HTTP resource requests.
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

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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Vulnerability database

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