CVE-2026-94127 PUBLISHED

BIG-IP APM OAuth vulnerability

Assigner: f5
Reserved: 20.09.2026 Published: 22.09.2026 Updated: 22.09.2026

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.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	F5
Product	BIG-IP
Versions	Default: unknown affected from 21.1.0 to Hotfix-BIGIP-21.1.0.2.0.30.22-ENG (excl.) affected from 17.5.0 to Hotfix-BIGIP-17.5.1.9.0.160.12-ENG (excl.) affected from 17.1.0 to Hotfix-BIGIP-17.1.3.5.0.41.14-ENG (excl.)

Workarounds

An iRule is available upon request. Open a ticket with F5 support to request this.

Credits

F5 finder

References

https://my.f5.com/manage/s/article/K000162605

Problem Types

CWE-122 Heap-based Buffer Overflow CWE

Impacts

CAPEC-100 Overflow Buffers