PT-2026-40635 · F5 · Big-Iq+1

Published 2026-05-13 · Updated 2026-05-17 · CVE-2026-32643

Positive Technologies (AI Summary)

CVSS v3.1

8.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions BIG-IP versions prior to 17.1.3.2 BIG-IP versions prior to 17.5.1.6 BIG-IP versions prior to 21.0.0.2 BIG-IQ versions prior to 17.1.3.2 BIG-IQ versions prior to 17.5.1.6 BIG-IQ versions prior to 21.0.0.2

Description A flaw in BIG-IP and BIG-IQ systems allows a highly privileged, authenticated attacker with at least the Certificate Manager role to modify configuration objects. This action can lead to the execution of arbitrary commands.

Recommendations Update BIG-IP to version 17.1.3.2 or later. Update BIG-IP to version 17.5.1.6 or later. Update BIG-IP to version 21.0.0.2 or later. Update BIG-IQ to version 17.1.3.2 or later. Update BIG-IQ to version 17.5.1.6 or later. Update BIG-IQ to version 21.0.0.2 or later.

Fix

Weakness Enumeration

CWE-250

Related Identifiers

CVE-2026-32643

Affected Products

Big-Ip

Big-Iq

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-32643 · Security Note
• https://my.f5.com/manage/s/article/K000160972 · Patch, Vendor Advisory
• https://twitter.com/f1tym1/status/2055947527770218869 · Twitter Post