BugZero | Palo Alto Networks BugID PAN-139172 - Fixed an issue where response pages generated from...

Palo Alto Networks - Defect ID: PAN-139172

Fixed an issue where response pages generated from the firewall used the SMAC and DMAC addresses from the original packet, which caused a MAC flap on connected switches.

Palo Alto Networks - Defect ID: PAN-139172

Fixed an issue where response pages generated from the firewall used the SMAC and DMAC addresses from the original packet, which caused a MAC flap on connected switches.

Last updated on Invalid date

BugZero Risk Score
6.3 Medium

Overall: 6.3

Severity: 6.4

Community: 3.7

Lifecycle: 10.0

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Bug Details

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Description

The earliest recollection of this bug is traced back to PAN-OS 8.1.16 - July 22, 2025. This bug is fixed in PAN-OS versions 9.1.4, 8.1.16. Fixed an issue where response pages generated from the firewall used the SMAC and DMAC addresses from the original packet, which caused a MAC flap on connected switches. For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-16-addressed-issues https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-4-addressed-issues

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Palo Alto Networks - Defect ID: PAN-139172

Fixed an issue where response pages generated from the firewall used the SMAC and DMAC addresses from the original packet, which caused a MAC flap on connected switches.

Palo Alto Networks - Defect ID: PAN-139172

Fixed an issue where response pages generated from the firewall used the SMAC and DMAC addresses from the original packet, which caused a MAC flap on connected switches.

Last updated on Invalid date

BugZero Risk Score6.3 Medium

Bug Details

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Top Palo Alto Networks Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.3 Medium