
🛡️ **F5 BIG-IP APM Zero-Day RCE Actively Exploited — Patch Now**
Published Wednesday, September 23, 2026 at 05:31 PM PT BLUF: F5 has released a patch for CVE-2026-94127, a critical heap-based buffer overflow in BIG-IP Access Policy Manager (APM) allowing unauthenticated remote code execution. Active exploitation in the wild confirmed. Organizations running vulnerable BIG-IP APM instances should patch immediately. DETAILS Vulnerability: CVE-2026-94127 — heap-based buffer overflow in F5 BIG-IP Access Policy Manager (APM) Attack vector: Unauthenticated; attackers can send malicious traffic to achieve RCE without authentication Active exploitation: Confirmed in-the-wild attacks; disclosed as zero-day with public exploits available Affected component: F5 BIG-IP APM (particularly OAuth server deployments) Patch status: F5 published security advisory and patches on 22 September 2026 IMPACT ...








