vulnerability

F5 Networks: CVE-2025-53521: K000156741: BIG-IP APM vulnerability CVE-2025-53521

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Oct 16, 2025
Added
Oct 16, 2025
Modified
Apr 1, 2026

Description

When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE).  

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Solution

f5-big-ip-upgrade-latest
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.