BugZero | F5 BugID 450765 - tmm segfault: hud_mptcp_handler HUDCTL_PERFORM

F5 - Defect ID: 450765

tmm segfault: hud_mptcp_handler HUDCTL_PERFORM_METHOD

F5 - Defect ID: 450765

tmm segfault: hud_mptcp_handler HUDCTL_PERFORM_METHOD

Last updated on July 18th, 2026

BugZero Risk Score
8.4 High

Overall: 8.4

Severity: 9.1

Community: 4.2

Lifecycle: 7.0

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Bug Details

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

Description

Symptoms

TMM segmentation fault in hud_mptcp_handler when servicing HUDCTL_PERFORM_METHOD.

Impact

The tmm will crash and restart.

Conditions

This happens when "tmsh show sys conn" command issued with connections in "forwarding" state.

Workaround

Do not issue "tmsh show sys conn" command.

Fix Information

This problem is fixed by proper connection queue usage.

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

Fixed versions: 11.6.0, 11.5.7

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 11.6.0, 11.5.7

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F5 - Defect ID: 450765

tmm segfault: hud_mptcp_handler HUDCTL_PERFORM_METHOD

F5 - Defect ID: 450765

tmm segfault: hud_mptcp_handler HUDCTL_PERFORM_METHOD

Last updated on July 18th, 2026

BugZero Risk Score8.4 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 450765

tmm segfault: hud_mptcp_handler HUDCTL_PERFORM_METHOD

F5 - Defect ID: 450765

tmm segfault: hud_mptcp_handler HUDCTL_PERFORM_METHOD

Last updated on July 18th, 2026

BugZero Risk Score8.4 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
8.4 High

BugZero Risk Score
8.4 High