🔐 CVE Alert

CVE-2026-94127

CRITICAL 9.8 ⚠️ CISA KEV

BIG-IP APM OAuth vulnerability

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-122
Vendor f5
Product big-ip
Published Sep 22, 2026
Last Updated Sep 23, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

F5 / BIG-IP
21.1.0 < Hotfix-BIGIP-21.1.0.2.0.30.22-ENG 17.5.0 < Hotfix-BIGIP-17.5.1.9.0.160.12-ENG 17.1.0 < Hotfix-BIGIP-17.1.3.5.0.41.14-ENG

References

NVD ↗ CVE.org ↗ EPSS Data ↗
my.f5.com: https://my.f5.com/manage/s/article/K000162605 cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-94127

Credits

F5