BugZero | F5 BugID 548159 - Mutliple CMP headers can be constructed in CMP mes...

F5 - Defect ID: 548159

Mutliple CMP headers can be constructed in CMP messages

F5 - Defect ID: 548159

Mutliple CMP headers can be constructed in CMP messages

Last updated on July 18th, 2026

BugZero Risk Score
6.8 Medium

Overall: 6.8

Severity: 7.3

Community: 4.2

Lifecycle: 7.8

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Bug Details

Priority: 3-Major
Status: Not Verified
Impact Category: Local Traffic Manager
Views: 1

Description

Symptoms

There is an issue with L2 multicast forwarded packets in CMP mode. As a result traffic is dropped, or tmm can crash.

Impact

Traffic disrupted while tmm restarts.

Conditions

Forwarding L2 multicast packets

Workaround

None

Fix Information

A tmm crash related to L2 multicast packet forwarding in CMP has been fixed.

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4

Fixed versions: 12.1.0

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 12.1.0

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F5 - Defect ID: 548159

Mutliple CMP headers can be constructed in CMP messages

F5 - Defect ID: 548159

Mutliple CMP headers can be constructed in CMP messages

Last updated on July 18th, 2026

BugZero Risk Score6.8 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 548159

Mutliple CMP headers can be constructed in CMP messages

F5 - Defect ID: 548159

Mutliple CMP headers can be constructed in CMP messages

Last updated on July 18th, 2026

BugZero Risk Score6.8 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.8 Medium

BugZero Risk Score
6.8 Medium