CVE-2026-41957

BIG-IP and BIG-IQ Configuration utility vulnerability

State: Published
Severity: 8.7 High
Published: May 13, 2026
Updated: May 14, 2026
Reserved: Apr 30, 2026

Description

An authenticated remote code execution vulnerability through undisclosed vectors exists in the BIG-IP and BIG-IQ Configuration utility.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	f5
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	f5

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
BIG-IPF5	21.0.0 and laterNot affected 17.5.0 to before 17.5.1.4Affected 17.1.0 to before 17.1.3.1Affected 16.1.0 and laterAffected
BIG-IQF5	8.4.0 to before 8.4.1Affected

References

https://my.f5.com/manage/s/article/K000156761vendor-advisorypatch

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