BugZero | F5 BugID 575569 - MCPd might leak memory in FW DOS DNS stats query.

F5 - Defect ID: 575569

MCPd might leak memory in FW DOS DNS stats query.

F5 - Defect ID: 575569

MCPd might leak memory in FW DOS DNS stats query.

Last updated on July 18th, 2026

BugZero Risk Score
7.0 High

Overall: 7.0

Severity: 7.3

Community: 4.2

Lifecycle: 10.0

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Bug Details

Priority: 3-Major
Status: Resolved
Impact Category: Advanced Firewall Manager

Description

Symptoms

MCPd might leak memory in FW DOS DNS stats query.

Impact

Over time this can cause MCPd to run out of memory and core.

Conditions

This occurs when looking at firewall DOS DNS statistics.

Workaround

None

Fix Information

None

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, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 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: 575569

MCPd might leak memory in FW DOS DNS stats query.

F5 - Defect ID: 575569

MCPd might leak memory in FW DOS DNS stats query.

Last updated on July 18th, 2026

BugZero Risk Score7.0 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 575569

MCPd might leak memory in FW DOS DNS stats query.

F5 - Defect ID: 575569

MCPd might leak memory in FW DOS DNS stats query.

Last updated on July 18th, 2026

BugZero Risk Score7.0 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
7.0 High

BugZero Risk Score
7.0 High