CVE-2026-42406 — HIGH (8.7)

Vulnerability 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.

CVSS Score

8.7

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-267

References

https://my.f5.com/manage/s/article/K000160971

FAQ

What is CVE-2026-42406?

CVE-2026-42406 is a vulnerability with a CVSS score of 8.7 (HIGH). 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 arb...

How severe is CVE-2026-42406?

CVE-2026-42406 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-42406?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.