CVE-2026-42406 — BIG-IP and BIG-IQ privilege escalation vulnerability

CVE-2026-42406

BIG-IP and BIG-IQ privilege escalation vulnerability PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
F5 / BIG-IP	unaffected 21.1.0 before ; affected 21.0.0 before 21.0.0.2; affected 17.5.0 before 17.5.1.6; affected 17.1.0 before 17.1.3.2; affected 16.1.0 before
F5 / BIG-IQ	affected 8.4.0 before *

CWE

CWE-267

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.