F5-K000156644: Low severity F5 BIG-IP vulnerability
Published Feb 4, 2026
·Updated
A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages.
Affected Software
3 affected componentsFixes available
F5 BIG-IP
F5 BIG-IP>=17.5.0<=17.5.1, >=17.1.0<=17.1.3
17.5.1.417.1.3.1
F5 BIG-IP>=16.1.0<=16.1.6
Event History
Feb 4, 2026
Advisory Published
via F5·02:03 PM
Data Sourced
via F5·02:03 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of F5-K000156644?
The severity of F5-K000156644 is classified as a medium-risk vulnerability.
2
How do I fix F5-K000156644?
To fix F5-K000156644, upgrade the F5 BIG-IP software to the latest version available.
3
What impact does F5-K000156644 have on my system?
F5-K000156644 may allow an attacker to spoof error messages, potentially leading to misinformation or misdirection.
4
Is F5-K000156644 affecting my version of BIG-IP?
F5-K000156644 affects specific versions of F5 BIG-IP including 16.1.0 to 16.1.6, 17.1.0 to 17.1.3, and 17.5.0 to 17.5.1.
5
How can I determine if my BIG-IP is vulnerable to F5-K000156644?
Check the version of your F5 BIG-IP configuration against the versions listed in the F5-K000156644 advisory.