F5-K000154661: Medium severity F5 F5OS-A vulnerability

Published Oct 15, 2025
·
Updated

When a highly-privileged, authenticated attacker attempts to initialize the rSeries FIPS module using a password with special shell metacharacters, arbitrary system commands may be executed, and the FIPS hardware security module (HSM) may fail to initialize. A successful exploit can allow the attacker to cross a security boundary.

Affected Software

1 affected componentFixes available
F5 F5OS-A=1.8.0, >=1.5.1<=1.5.3
1.8.31.5.4

Event History

Oct 15, 2025
Advisory Published
via F5·11:01 AM
Data Sourced
via F5·11:01 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of F5-K000154661?

The severity of F5-K000154661 is considered medium due to potential impacts on the initialization of the FIPS HSM.

2

How do I fix F5-K000154661?

To fix F5-K000154661, ensure that the password used for initializing the rSeries FIPS module does not contain special shell metacharacters.

3

Which versions are affected by F5-K000154661?

F5-K000154661 affects F5OS-A versions 1.8.0 and versions from 1.5.1 to 1.5.3.

4

What happens if I use special shell metacharacters in F5-K000154661?

Using special shell metacharacters may cause the FIPS hardware security module to fail to initialize properly.

5

Is there a workaround for F5-K000154661?

The primary workaround for F5-K000154661 is to avoid using passwords with special shell metacharacters during FIPS module initialization.

Contact

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