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CVE-2026-94127— BIG-IP APM OAuth vulnerability

Quick assessment

Affected
F5 BIG-IP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

When a BIG-IP APM access policy and an OAuth profile is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-

CVSS 9.8 · Critical

Affected Version Matrix 3

VendorProduct Version RangeStatus
F5 BIG-IP 21.1.0< Hotfix-BIGIP-21.1.0.2.0.30.22-ENG affected
17.5.0< Hotfix-BIGIP-17.5.1.9.0.160.12-ENG affected
17.1.0< Hotfix-BIGIP-17.1.3.5.0.41.14-ENG affected
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I. Basic Information for CVE-2026-94127

Vulnerability Information

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Vulnerability Title
BIG-IP APM OAuth vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
When a BIG-IP APM access policy and an OAuth profile is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
F5 BIG-IP 21.1.0 ~ Hotfix-BIGIP-21.1.0.2.0.30.22-ENG -

II. Public POCs for CVE-2026-94127

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III. Intelligence Information for CVE-2026-94127

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Other References for CVE-2026-94127 (1)

IV. Related Vulnerabilities

Same product: BIG-IP
Same vendor: F5
Same weakness: CWE-122

V. Comments for CVE-2026-94127

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