PT-2026-40659 · F5 · Big-Iq+1

Published 2026-05-13 · Updated 2026-05-17 · CVE-2026-41219

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions prior to 17.1.3.1 F5 BIG-IQ versions prior to 17.5.1.4

Description An improper sanitization issue in the QKView utility allows a low-privileged attacker to read sensitive information from a QKView file.

Recommendations Update F5 BIG-IP to version 17.1.3.1 or later. Update F5 BIG-IQ to version 17.5.1.4 or later.

Fix

Insertion into Log File

Weakness Enumeration

CWE-532

Related Identifiers

CVE-2026-41219

Affected Products

Big-Ip

Big-Iq

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-41219 · Security Note
• https://twitter.com/f1tym1/status/2056002967946289180 · Twitter Post
• https://my.f5.com/manage/s/article/K000157895 · Vendor Advisory, Patch