BugZero | F5 BugID 673095 - Loading UCS with QinQ VLANs fails 'Can't free vlan...

F5 - Defect ID: 673095

Loading UCS with QinQ VLANs fails 'Can't free vlan entry, can't find vlan with oid'

F5 - Defect ID: 673095

Loading UCS with QinQ VLANs fails 'Can't free vlan entry, can't find vlan with oid'

Last updated on July 18th, 2026

BugZero Risk Score
8.6 High

Overall: 8.6

Severity: 9.1

Community: 4.2

Lifecycle: 8.7

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Bug Details

Priority: 2-Critical
Status: Resolved
Impact Category: Local Traffic Manager

Description

Symptoms

Unable to load a UCS due to a VLAN validation error.

Impact

Unable to reload the saved config.

Conditions

QinQ VLANs saved in a UCS file.

Workaround

Before loading the config, use tmsh to delete all VLANs. Then config will load successfully.

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

Click on a version to see all relevant bugs

Affected versions:12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1, 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

Fixed versions: 14.0.0

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 14.0.0

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F5 - Defect ID: 673095

Loading UCS with QinQ VLANs fails 'Can't free vlan entry, can't find vlan with oid'

F5 - Defect ID: 673095

Loading UCS with QinQ VLANs fails 'Can't free vlan entry, can't find vlan with oid'

Last updated on July 18th, 2026

BugZero Risk Score8.6 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 673095

Loading UCS with QinQ VLANs fails 'Can't free vlan entry, can't find vlan with oid'

F5 - Defect ID: 673095

Loading UCS with QinQ VLANs fails 'Can't free vlan entry, can't find vlan with oid'

Last updated on July 18th, 2026

BugZero Risk Score8.6 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
8.6 High

BugZero Risk Score
8.6 High