BugZero | F5 BugID 936093 - Non-empty fipserr files loaded from a UCS archive ...

F5 - Defect ID: 936093

Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

F5 - Defect ID: 936093

Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

Last updated on July 18th, 2026

BugZero Risk Score
6.7 Medium

Overall: 6.7

Severity: 7.3

Community: 4.2

Lifecycle: 7.0

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Bug Details

Priority: 3-Major
Status: Verified
Impact Category: TMOS

Description

Symptoms

Loading a UCS file with non-empty fipserr files can cause a FIPS-based system to remain offline.

Impact

System is completely offline with spurious 'fipserr' failures, even after loading the UCS file.

Conditions

-- Using a BIG-IP with a Platform FIPS license. -- Loading a UCS file with a non-empty fipserr file.

Workaround

Before creating a UCS archive, truncate the following files so they have zero size: /config/f5_public/fipserr /var/named/config/f5_public/fipserr /var/dnscached/config/f5_public/fipserr This can be accomplished using a command such as: truncate -c -s0 /config/f5_public/fipserr /var/named/config/f5_public/fipserr /var/dnscached/config/f5_public/fipserr

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5

Fixed versions: 17.5.0, 17.1.1, 16.1.4, 15.1.9

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 17.5.0, 17.1.1, 16.1.4, 15.1.9

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F5 - Defect ID: 936093

Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

F5 - Defect ID: 936093

Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

Last updated on July 18th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 936093

Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

F5 - Defect ID: 936093

Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

Last updated on July 18th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.7 Medium

BugZero Risk Score
6.7 Medium