Disclaimer

Known affected versions were inferred from fixed-version data and were not explicitly confirmed by the vendor: 8.1.13, 9.1.2

The earliest recollection of this bug is traced back to PAN-OS 8.1.14 - July 22, 2025. This bug is fixed in PAN-OS versions 9.1.3, 8.1.14. Fixed an issue where packets tagged with IP protocol 252 were incorrectly treated as GPRS tunneling protocol (GTP) traffic, which caused the packet processor to terminate. For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-14-addressed-issues https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-3-addressed-issues