BugZero | F5 BugID 913713 - Rebooting a blade causes MCPd to core as it rejoin...

F5 - Defect ID: 913713

Rebooting a blade causes MCPd to core as it rejoins the cluster

F5 - Defect ID: 913713

Rebooting a blade causes MCPd to core as it rejoins the cluster

Last updated on July 18th, 2026

BugZero Risk Score
9.6 High

Overall: 9.6

Severity: 10.0

Community: 4.2

Lifecycle: 10.0

What is the BugZero Risk Score?

F5 Integration

Learn more about where this data comes from

F5 Integration

Learn more

BugZero Plan

Streamline upgrades with automated vendor bug scrubs

BugZero Plan

Learn more

BugZero Prevent

Wish you caught this bug sooner? Get proactive today.

BugZero Prevent

Learn more

Bug Details

Priority: 1-Blocking
Status: Resolved
Impact Category: TMOS

Description

Symptoms

Tmm and mcpd cores for slot2

Impact

Traffic disrupted while tmm and mcpd mcpd restarts.

Conditions

On the standby chassis, reboot the primary blade and wait for it to rejoin the cluster. Once it does, mcpd will core.

Workaround

N/A

Fix Information

None

Change history

2026-07-18 Added: 15.1.10.7, 15.1.10.8, 16.1.6.1

2026-02-27 Added: 15.1.10.7, 15.1.10.8, 16.1.6.1

2025-12-31 Added: 15.1.10.7, 15.1.10.8, 16.1.6.1

2025-11-15 Added: 15.1.10.7, 15.1.10.8, 16.1.6.1

2025-10-19 Added: 15.1.10.7, 15.1.10.8, 16.1.6.1

2025-06-28 Added: 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, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6, 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, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6

Relevant Products

Click on a version to see all relevant bugs

Affected versions: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, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6, 15.1.10.7, 15.1.10.8, 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, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1

Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: No known fixed versions

Top F5 Defects

9.6Defect ID: 546260
TMM can crash if using the v6rd profile
9.6Defect ID: 1496269
VCMP guest on version 16.1.4 or above might experience constant TMM crashes.
9.6Defect ID: 934133
Unable to Create/delete ltm virtual server via CLI transaction when destination is not specified on the ltm virtual object
9.6Defect ID: 1154417
Profile based attack is not mitigated at hardware on L2 wire setup
9.6Defect ID: 913713
Rebooting a blade causes MCPd to core as it rejoins the cluster

Ready to prevent the next vendor outage?

Get a demo

F5 - Defect ID: 913713

Rebooting a blade causes MCPd to core as it rejoins the cluster

F5 - Defect ID: 913713

Rebooting a blade causes MCPd to core as it rejoins the cluster

Last updated on July 18th, 2026

BugZero Risk Score9.6 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Top F5 Defects

Ready to prevent the next vendor outage?

Links

BugZero Risk Score
9.6 High