CVE-2025-53521
BigIP APM Vulnerability
In short
A flaw in F5 BIG-IP's APM (Access Policy Manager) allows attackers to run malicious code remotely on affected servers when certain traffic patterns are sent. This is a critical vulnerability because it gives attackers complete control over the system.
Technical detail
A stack-based buffer overflow (CWE-121) in BIG-IP APM's access policy processing allows unauthenticated remote code execution when specially crafted traffic is sent to a virtual server with APM enabled. The vulnerability requires no authentication or user interaction and can be exploited with network-level access to the vulnerable interface.
Summary generated and translated by AI from the official 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
F5 · BIG-IPWant to know if your infrastructure is exposed to this?
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