F5 security advisory (AV26-949) - Update 1

Serial number: AV26-949
Date: September 22, 2026

As of September 22, 2026, F5 is affected by a vulnerability in the following product:

  • BIG-IP APM
    • Versions 21.1.0 prior to Hotfix-BIGIP-21.1.0.2.0.30.22-ENG
    • Versions 17.5.0 prior to Hotfix-BIGIP-17.5.1.9.0.160.12-ENG
    • Versions 17.1.0 prior to Hotfix-BIGIP-17.1.3.5.0.41.14-ENG

F5 has reported that CVE-2026-94127 is being exploited in the wild.

Update 1
On September 22, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-94127 to their Known Exploited Vulnerabilities (KEV) Database.

The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.

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