BugZero | F5 BugID 1112781 - DNS query drops on Virtual Edition platform if the...

F5 - Defect ID: 1112781

DNS query drops on Virtual Edition platform if the packet size is above 1500 for NAPTR record.

F5 - Defect ID: 1112781

DNS query drops on Virtual Edition platform if the packet size is above 1500 for NAPTR record.

Last updated on July 18th, 2026

BugZero Risk Score
6.7 Medium

Overall: 6.7

Severity: 7.3

Community: 4.2

Lifecycle: 7.0

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Bug Details

Priority: 3-Major
Status: Verified
Impact Category: Advanced Firewall Manager
Views: 1

Description

Symptoms

The BIG-IP system drops the packet if the DNS response size is larger than 2048.

Impact

The BIG-IP system drops the packet and does not respond to the client.

Conditions

When the DNS server sends a response larger than 2048 bytes.

Workaround

If possible, switch from UDP to TCP to avoid dropping the packet.

Fix Information

None

Change history

Links

Original Vendor Announcement

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, 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

Fixed versions: 17.5.0, 17.1.1, 16.1.4, 15.1.9

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 17.5.0, 17.1.1, 16.1.4, 15.1.9

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F5 - Defect ID: 1112781

DNS query drops on Virtual Edition platform if the packet size is above 1500 for NAPTR record.

F5 - Defect ID: 1112781

DNS query drops on Virtual Edition platform if the packet size is above 1500 for NAPTR record.

Last updated on July 18th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 1112781

DNS query drops on Virtual Edition platform if the packet size is above 1500 for NAPTR record.

F5 - Defect ID: 1112781

DNS query drops on Virtual Edition platform if the packet size is above 1500 for NAPTR record.

Last updated on July 18th, 2026

BugZero Risk Score6.7 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.7 Medium

BugZero Risk Score
6.7 Medium