Disclaimer

Known affected versions were inferred from fixed-version data and were not explicitly confirmed by the vendor: 11.1.13-h10, 12.1.4-h5

The earliest recollection of this bug is traced back to PAN-OS 11.1.13-h5. - September 21, 2026. This bug is fixed in PAN-OS versions 12.1.5, 11.1.14, 11.1.13-h5.. Fixed an issue where on PA-7500 firewalls, SNMP incorrectly reported the administrative and operational status of High Speed Chassis Interconnect (HSCI) interfaces as down, even when the interfaces were physically up. Additionally, interface counters for these interfaces displayed all zeroes. For more information: https://docs.paloaltonetworks.com/ngfw/release-notes/12-1/pan-os-12-1-5-known-and-addressed-issues/pan-os-12-1-5-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-13-known-and-addressed-issues/pan-os-11-1-13-h5-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-14-known-and-addressed-issues/pan-os-11-1-14-addressed-issues