F5-K000156642: High severity F5 BIG-IP vulnerability

Published Oct 15, 2025
·
Updated

A vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command that may allow an authenticated attacker with at least the resource administrator role to execute arbitrary system commands with higher privileges. A successful exploit can allow the attacker to cross a security boundary.

Affected Software

3 affected componentsFixes available
F5 BIG-IP>=17.5.0<=17.5.1, >=17.1.0<=17.1.2
17.5.1.317.1.3
F5 BIG-IP>=16.1.0<=16.1.6
16.1.6.1
F5 BIG-IP>=15.1.0<=15.1.10
15.1.10.8

Event History

Oct 15, 2025
Advisory Published
via F5·10:11 AM
Data Sourced
via F5·10:11 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of F5-K000156642?

The severity of F5-K000156642 is critical as it allows authenticated attackers to execute arbitrary system commands with higher privileges.

2

How do I fix F5-K000156642?

To fix F5-K000156642, upgrade to the recommended versions specified by F5, such as 17.5.1.317.1.3, 16.1.6.1, or 15.1.10.8.

3

Who is affected by F5-K000156642?

F5-K000156642 affects users of F5 BIG-IP versions between 17.5.0 and 17.5.1, 17.1.0 and 17.1.2, and 16.1.0 to 16.1.6.

4

What type of access is required for F5-K000156642 exploitation?

Exploitation of F5-K000156642 requires at least the resource administrator role for authenticated access.

5

What are the potential impacts of F5-K000156642?

The potential impacts of F5-K000156642 include unauthorized execution of system commands and possible security breaches.

Contact

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