CVE-2026-40462 iControl REST and tmsh vulnerability
An authenticated attacker can view sensitive information via incorrect permission assignments in iControl REST and tmsh on F5 BIG-IP devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-40462?
CVE-2026-40462 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Incorrect permission assignment vulnerabilities exist in iControl REST and TMOS shell (tmsh) undisclosed command which may allow an authenticated attacker to view sensitive information. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-732
Which versions are affected by CVE-2026-40462?
It affects 21 products.
Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager and 15 more.
How do I fix CVE-2026-40462?
No fix has been published for CVE-2026-40462 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-40462 being exploited?
There is no known exploitation of CVE-2026-40462 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Access Policy Manager
- CVE-2023-46747 F5 BIG-IP Configuration Utility Authentication Bypass
- CVE-2022-1388 F5 BIG-IP Missing Authentication
- CVE-2021-22986 F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution
- CVE-2021-22991 F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- CVE-2020-5902 F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution
Sources
Also known as GHSA-m5rw-fq84-2jg3.