The earliest recollection of this bug is traced back to PAN-OS 11.1.0 - October 25, 2026. This bug is fixed in PAN-OS versions 11.2.11, 11.2.7-h13., 11.1.13-h5., 12.1.5, 11.1.14, 11.2.10-h6.. Fixed an issue on the firewall where SolarWinds monitoring systems reported 100% usage for Slot1 Data Processor-0 Hardware Packet Buffers due to an inaccurate reported packet buffer. After upgrading to an affected release, SNMP monitoring systems such as SolarWinds may report 100% usage for hardware packet buffers on PA-3400 Series and PA-5450 firewalls, even when the firewall is idle and packet buffer utilization is normal. The packet buffer utilization oid is fixed to not show incorrect values. 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