CVE-2026-94127: Critical Unauthenticated RCE in F5 BIG-IP APM

Reported by Rapid7

Summary by Cyber Security News23 Sep 2026, 10:43 CEST

About this summary. This is a short, independently written summary of an article first published by Rapid7. Cyber Security News did not report or verify the underlying story. Read the original: https://www.rapid7.com/blog/post/etr-cve-2026-94127-critical-unauthenticated-rce-in-f5-big-ip-apm

OverviewOn September 22, 2026, F5 published a security advisory for CVE-2026-94127, a critical heap-based buffer overflow vulnerability affecting F5 BIG-IP Access Policy Manager (APM). The vulnerability has a CVSS v3.1 score of 9.8. An unauthenticated attacker with network access to an affected virtual server may be able to achieve remote code execution (RCE) by sending specifically crafted traffic.

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