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

8 results

Sep 22, 2026F5 BIG-IP APM Heap-based Buffer Overflow VulnerabilityCVE-2026-94127 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedCritical 9.3
F5 BIG-IP APM contains a heap-based buffer overflow vulnerability when access policy and an OAuth profile are configured on a virtual server. This vulnerability could allow an unauthenticated attacker to perform remote code execution.
Product
BIG-IP APM
On CISA’s list since
Sep 22, 2026 (federal fix deadline Sep 25, 2026)
What to do
Attackers are using this now. Install F5’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 my.f5.com cisa.gov
Mar 27, 2026F5 BIG-IP Stack-Based Buffer Overflow VulnerabilityCVE-2025-53521 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedCritical 9.3
F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution.
Product
BIG-IP
On CISA’s list since
Mar 27, 2026 (federal fix deadline Mar 30, 2026)
What to do
Attackers are using this now. Install F5’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 my.f5.com cisa.gov
Oct 31, 2023F5 BIG-IP Configuration Utility SQL Injection VulnerabilityCVE-2023-46748 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedHigh 8.8
F5 BIG-IP Configuration utility contains an SQL injection vulnerability that may allow an authenticated attacker with network access through the BIG-IP management port and/or self IP addresses to execute system commands. This vulnerability can be used in conjunction with CVE-2023-46747.
Product
BIG-IP Configuration Utility
On CISA’s list since
Oct 31, 2023 (federal fix deadline Nov 21, 2023)
What to do
Attackers are using this now. Install F5’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 my.f5.com secpod.com
Oct 31, 2023F5 BIG-IP Configuration Utility Authentication Bypass VulnerabilityCVE-2023-46747 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedRansomwareCritical 9.8
F5 BIG-IP Configuration utility contains an authentication bypass using an alternate path or channel vulnerability due to undisclosed requests that may allow an unauthenticated attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute system commands. This vulnerability can be used in conjunction with CVE-2023-46748.
Product
BIG-IP Configuration Utility
On CISA’s list since
Oct 31, 2023 (federal fix deadline Nov 21, 2023)
What to do
Attackers are using this now. Install F5’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 packetstormsecurity.com my.f5.com
May 10, 2022F5 BIG-IP Missing Authentication VulnerabilityCVE-2022-1388 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedRansomwareCritical 9.8
F5 BIG-IP contains a missing authentication in critical function vulnerability which can allow for remote code execution, creation or deletion of files, or disabling services.
Product
BIG-IP
On CISA’s list since
May 10, 2022 (federal fix deadline May 31, 2022)
What to do
Attackers are using this now. Install F5’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 packetstormsecurity.com packetstormsecurity.com
Jan 18, 2022F5 BIG-IP Traffic Management Microkernel Buffer OverflowCVE-2021-22991 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedCritical 9.8
The Traffic Management Microkernel of BIG-IP ASM Risk Engine has a buffer overflow vulnerability, leading to a bypassing of URL-based access controls.
Product
BIG-IP Traffic Management Microkernel
On CISA’s list since
Jan 18, 2022 (federal fix deadline Feb 1, 2022)
What to do
Attackers are using this now. Install F5’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 support.f5.com support.f5.com
Nov 3, 2021F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution VulnerabilityCVE-2021-22986 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedRansomwareCritical 9.8
F5 BIG-IP and BIG-IQ Centralized Management contain a remote code execution vulnerability in the iControl REST interface that allows unauthenticated attackers with network access to execute system commands, create or delete files, and disable services.
Product
BIG-IP and BIG-IQ Centralized Management
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install F5’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 packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution VulnerabilityCVE-2020-5902 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedRansomwareCritical 9.8
F5 BIG-IP Traffic Management User Interface (TMUI) contains a remote code execution vulnerability in undisclosed pages.
Product
BIG-IP
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install F5’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 packetstormsecurity.com packetstormsecurity.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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