# CVE-2026-94127

When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability. Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

- Page: https://www.vulneraibility.com/cve/CVE-2026-94127
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2026-09-22; CISA due date 2026-09-25
- EPSS: 26.55%
- Unvetted proof-of-concept code on GitHub: 2 GitHub proofs of concept (first 2026-09-23)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2026-09-22)
- Weakness: CWE-122
- Published: 2026-09-22

## Affected versions

- F5 BIG-IP: affected >= 21.1.0 and < Hotfix-BIGIP-21.1.0.2.0.30.22-ENG; >= 17.5.0 and < Hotfix-BIGIP-17.5.1.9.0.160.12-ENG; >= 17.1.0 and < Hotfix-BIGIP-17.1.3.5.0.41.14-ENG

A version outside these ranges is not a statement that it is unaffected.

## References

- [advisory] https://my.f5.com/manage/s/article/K000162605
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-94127

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.