CVE-2026-94127 KEV
Patch first
On CISA KEV — known exploited in the wild, due 2026-09-25.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.23% — more likely to be exploited than 82% of all CVEs |
| Weakness | CWE-122 |
| On CISA KEV | yes — remediate by 2026-09-25 |
| Public exploit | none known |
| Published | 2026-09-22 |
| Last modified | 2026-09-23 |
CISA KEV
| Name | F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability |
|---|---|
| Added | 2026-09-22 |
| Due | 2026-09-25 |
| Vendor / product | F5 / BIG-IP APM |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| f5 | big-ip access policy manager |
References
→ the Explorer · watch your stack · NVD