F5 BIG-IP / BIG-IQ Authenticated Cmd Injection via Cert Mngr Role
CVE-2026-42406 Published on May 13, 2026

BIG-IP and BIG-IQ privilege escalation vulnerability
A vulnerability exists in BIG-IP and BIG-IQ systems where a highly privileged, authenticated attacker with at least the Certificate Manager role can modify configuration objects that allow running arbitrary commands.     Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-42406 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Type

Privilege Defined With Unsafe Actions

A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity.


Products Associated with CVE-2026-42406

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F5 Networks Big Ip
 
F5 Networks
 

Affected Versions

F5 BIG-IP: F5 BIG-IQ: