CRITICALCVSS 9.3KNOWN EXPLOITED

CVE-2025-53521

CVE-2025-53521 updated by NVD

Published: 2026-03-27
Modified: 2026-11-04
Sources: cisa-kev, nvd

Summary

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.

References

https://nvd.nist.gov/vuln/detail/CVE-2025-53521

Includes data from the CISA Known Exploited Vulnerabilities catalog.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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