BugZero | Palo Alto Networks BugID PAN-294436 - ( PA-410, PA-440, PA-450, and PA-460 firewalls ) A...

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BugZero | Palo Alto Networks BugID PAN-294436 - ( PA-410, PA-440, PA-450, and PA-460 firewalls ) A...

Palo Alto Networks - Defect ID: PAN-294436

( PA-410, PA-440, PA-450, and PA-460 firewalls ) After upgrading to 11.1.6-h6, the Eth1/2, Eth1/3, Eth1/8, and HA interfaces (if configured) fail to display counters and statistics in the CLI and SNMP.

Palo Alto Networks - Defect ID: PAN-294436

( PA-410, PA-440, PA-450, and PA-460 firewalls ) After upgrading to 11.1.6-h6, the Eth1/2, Eth1/3, Eth1/8, and HA interfaces (if configured) fail to display counters and statistics in the CLI and SNMP.

Last updated on November 17th, 2025

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 11.1.10-h4 - November 17, 2025. This bug is fixed in PAN-OS versions 11.2.7-h1, 11.1.11, 11.1.6-h17, 11.2.8, 11.1.10-h4, 11.2.4-h14. Fixed an issue where polling failed for ethernet interfaces due to the physical port counters read from the MAC being 0. ( PA-410, PA-440, PA-450, and PA-460 firewalls ) After upgrading to 11.1.6-h6, the Eth1/2, Eth1/3, Eth1/8, and HA interfaces (if configured) fail to display counters and statistics in the CLI and SNMP. ( PA-410, PA-440, PA-450, and PA-460 firewalls only ) Fixed an issue where, after upgrading to PAN-OS 11.1.6-h6 the Eth1/2, Eth1/3, Eth1/8, and HA interfaces failed to display counters and statistics in the CLI and SNMP. For more information: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-10-known-and-addressed-issues/pan-os-11-1-10-h4-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-11-known-and-addressed-issues/pan-os-11-1-11-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-6-known-and-addressed-issues/pan-os-11-1-6-h17-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-6-known-and-addressed-issues/pan-os-11-1-6-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-4-known-and-addressed-issues/pan-os-11-2-4-h14-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-7-known-and-addressed-issues/pan-os-11-2-7-h1-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-8-known-and-addressed-issues/pan-os-11-2-8-addressed-issues

Change history

2025-11-17 Added: 11.1.6

2025-10-17 Added: 11.1.6

2025-10-10 Added: 11.1.6

2025-08-21 Added: 11.1.6

No changes to display

Relevant Products

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Affected versions:11.1.6

Fixed versions: 11.2.7-h1, 11.1.11, 11.1.6-h17, 11.2.8, 11.1.10-h4, 11.2.4-h14

Relevant Products

Click on a version to see all relevant bugs

Affected versions:11.1.6

Fixed versions: 11.2.7-h1, 11.1.11, 11.1.6-h17, 11.2.8, 11.1.10-h4, 11.2.4-h14

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6.3Defect ID: PAN-291661
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6.3Defect ID: PAN-294770
( Firewalls in active/passive HA configurations ) Fixed an issue on firewalls where, after failover, certain subnets were missing from the Link State Database, which prevented OSPF routes from being immediately learned due to a Type-7 to Type-5 LSA translation conflict in the ABR when the same LSA was advertised by two peers in the NSSA area.
6.3Defect ID: PAN-296752
Fixed an issue where the firewall experienced high management CPU usage and repeatedly rebooted when attempting to retrieve SMART data.
6.3Defect ID: PAN-297295
After upgrading to an affected release, the firewall restarts continuously because the brdagent process restarts multiple times and exhausts its restart limit, resulting in a segfault error. This issue occurs when a high burst of traffic is sent to the Azure PA-VM (Palo Alto Networks Virtual Machine), and impacts production environments due to the regular reboots. Workaround : Migrate the VM instance to Dv5 instance type. On these instance types, SYN packets are not routed to the synthetic path, avoiding this condition. Suggested direct resizing paths are: D3_v2/DS3_v2 to D8ds_v5 D4_v2/DS4_v2 to D8ds_v5 D5_v2/DS5_v2 to D16ds_v5 Azure VMs with ephemeral storage can only be resized to another type with ephemeral storage.
6.3Defect ID: PAN-294436
( PA-410, PA-440, PA-450, and PA-460 firewalls ) After upgrading to 11.1.6-h6, the Eth1/2, Eth1/3, Eth1/8, and HA interfaces (if configured) fail to display counters and statistics in the CLI and SNMP.

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OPERATIONAL DEFECT DATABASE

Palo Alto Networks - Defect ID: PAN-294436

( PA-410, PA-440, PA-450, and PA-460 firewalls ) After upgrading to 11.1.6-h6, the Eth1/2, Eth1/3, Eth1/8, and HA interfaces (if configured) fail to display counters and statistics in the CLI and SNMP.

Palo Alto Networks - Defect ID: PAN-294436

( PA-410, PA-440, PA-450, and PA-460 firewalls ) After upgrading to 11.1.6-h6, the Eth1/2, Eth1/3, Eth1/8, and HA interfaces (if configured) fail to display counters and statistics in the CLI and SNMP.

Last updated on November 17th, 2025

BugZero Risk Score6.3 Medium

Bug Details

Top Palo Alto Networks Defects

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BugZero Risk Score
6.3 Medium