CVE-2026-94127

EUVD-2026-84427
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 98.02%
Affected Products (NVD)
VendorProductVersion
f5big-ip_access_policy_manager
17.0.0 ≤
𝑥
≤ 17.1.3
f5big-ip_access_policy_manager
17.5.0 ≤
𝑥
≤ 17.5.1
f5big-ip_access_policy_manager
21.1.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://my.f5.com/manage/s/article/K000162605
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-94127