CVE-2026-42930 Appliance mode iControl REST vulnerability
An authenticated administrator can bypass Appliance mode restrictions on F5 BIG-IP systems, undermining security controls.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-42930?
CVE-2026-42930 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 13 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
When running in Appliance mode, an authenticated attacker assigned the 'Administrator' role may be able to bypass Appliance mode restrictions on a BIG-IP system.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-35
Which versions are affected by CVE-2026-42930?
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-2026-42930?
No fix has been published for CVE-2026-42930 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-42930 being exploited?
There is no known exploitation of CVE-2026-42930 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-37mq-hr48-xhmc.