CVE-2026-40699

MEDIUM

F5 BIG-IP 21.1.0-21.0.0.1, 17.5.0-17.5.1.4, 17.1.0-17.1.3.1, 16.1.0 - Authenticated Information Disclosure

Title source: llm
STIX 2.1

Description

A vulnerability exists in the undisclosed pages in the Configuration utility that may allow a low-privileged authenticated attacker to access to undisclosed sensitive information.  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/K000156734

Scores

CVSS v3 6.5
EPSS 0.0007
EPSS Percentile 21.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-643
Status published
Products (5)
F5/BIG-IP 16.1.0
F5/BIG-IP 17.1.0 - 17.1.3.1
F5/BIG-IP 17.5.0 - 17.5.1.4
F5/BIG-IP 21.0.0 - 21.0.0.1
F5/BIG-IP 21.1.0
Published May 13, 2026
Tracked Since May 13, 2026