CVE-2026-42406

What it is

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.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-05-13 16:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-26 14:10 UTC Last updatedMost recent change to the record

Details

Published

2026-05-13 16:16 UTC

Last modified

2026-10-26 14:10 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-267

Record status

Analyzed

Affected

• f5 big-ip Access Policy Manager ≤ 17.1.3
• f5 big-ip Access Policy Manager ≤ 17.5.1
• f5 big-ip Advanced Firewall Manager ≤ 17.1.3
• f5 big-ip Advanced Firewall Manager ≤ 17.5.1
• f5 big-ip Advanced Web Application Firewall ≤ 17.1.3
• f5 big-ip Advanced Web Application Firewall ≤ 17.5.1
• f5 big-ip Analytics ≤ 17.1.3
• f5 big-ip Analytics ≤ 17.5.1

Attack profile CVSS 4.0 · 8.5

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

High

User interaction

None

Confidentiality

High

Integrity

High

Availability

None