The earliest recollection of this bug is traced back to PAN-OS 11.1.6-h7 - October 10, 2025. This bug is fixed in PAN-OS versions 11.1.6-h7, 11.2.7, 11.1.7-h2, 11.1.9, 11.2.4-h10. Fixed an issue where the index size limit was incorrectly calculated and indices rolled over earlier than expected, which resulted in high memory and OOM errors. For more information: 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-h7-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-7-known-and-addressed-issues/pan-os-11-1-7-h2-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-9-known-and-addressed-issues/pan-os-11-1-9-addressed-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-h10-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-addressed-issues