#VU124687 Input validation error in BIG-IP and BIG-IP APM - CVE-2025-53521

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Main Vulnerability Database Vulnerabilities #VU124687

#VU124687 Input validation error in BIG-IP and BIG-IP APM - CVE-2025-53521

Published: March 30, 2026


Vulnerability identifier: #VU124687
Vulnerability risk: Critical
CVSSv4.0: 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/E:A/U:Red
CVE-ID: CVE-2025-53521
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
BIG-IP
BIG-IP APM
Software vendor:
F5 Networks

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input within the apmd process. A remote attacker can send specially crafted traffic to the device and execute arbitrary code.


Remediation

Install updates from vendor's website.

External links