CVE-2026-42406

HIGH

F5 BIG-IP/BIG-IQ - Authenticated Privilege Escalation

Title source: manual
STIX 2.1

Description

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://my.f5.com/manage/s/article/K000160971

Scores

CVSS v3 8.7
EPSS 0.0015
EPSS Percentile 4.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-267
Status published
Products (49)
F5/BIG-IP 16.1.0
F5/BIG-IP 17.1.0 - 17.1.3.2
F5/BIG-IP 17.5.0 - 17.5.1.6
F5/BIG-IP 21.0.0 - 21.0.0.2
F5/BIG-IP 21.1.0
f5/big-ip_access_policy_manager 21.0.0
f5/big-ip_access_policy_manager 17.1.0 - 17.1.3
f5/big-ip_advanced_firewall_manager 21.0.0
f5/big-ip_advanced_firewall_manager 17.1.0 - 17.1.3
f5/big-ip_advanced_web_application_firewall 21.0.0
... and 39 more
Published May 13, 2026
Tracked Since May 13, 2026