CVE-2026-94127
CriticalPublished
BIG-IP APM OAuth vulnerability
- Published
- Sep 22, 2026
- Updated
- Sep 23, 2026
- Assigning CNA
- f5
- Evidence observed
- Sep 22, 2026
Primary CVSS
9.3/ 10Critical
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BIG-IP APM OAuth vulnerability
cvelist · CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NThis CVE appears in the CISA Known Exploited Vulnerabilities catalog.
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.
Read-only defensive detector for CVE-2026-94127 in F5 BIG-IP APM. Fingerprints hosts, checks versions via iControl REST, and verifies OAuth authorization-server preconditions.
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