BugZero | Palo Alto Networks BugID PAN-151120 - Fixed an issue where the SYN-ACK packet matched st...

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BugZero | Palo Alto Networks BugID PAN-151120 - Fixed an issue where the SYN-ACK packet matched st...

Palo Alto Networks - Defect ID: PAN-151120

Fixed an issue where the SYN-ACK packet matched stale entries in the session flow table and was dropped on the firewall with the following error message: Inactive flow state 0 .

Palo Alto Networks - Defect ID: PAN-151120

Fixed an issue where the SYN-ACK packet matched stale entries in the session flow table and was dropped on the firewall with the following error message: Inactive flow state 0 .

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

Description

The earliest recollection of this bug is traced back to PAN-OS 8.1.20 - July 22, 2025. This bug is fixed in PAN-OS versions 8.1.20. Fixed an issue where the SYN-ACK packet matched stale entries in the session flow table and was dropped on the firewall with the following error message: Inactive flow state 0 . For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-20-addressed-issues

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OPERATIONAL DEFECT DATABASE

Palo Alto Networks - Defect ID: PAN-151120

Fixed an issue where the SYN-ACK packet matched stale entries in the session flow table and was dropped on the firewall with the following error message: Inactive flow state 0 .

Palo Alto Networks - Defect ID: PAN-151120

Fixed an issue where the SYN-ACK packet matched stale entries in the session flow table and was dropped on the firewall with the following error message: Inactive flow state 0 .

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