The following table lists the issues that are addressed in the PAN-OS® 7.1.15 release. For new features, associated software versions, known issues, and changes in default behavior, see PAN-OS 7.1 Release Information. Before you upgrade or downgrade to this release, review the information in Upgrade to PAN-OS 7.1.
Starting with PAN-OS 7.1.5, all unresolved known issues and any newly addressed issues in these release notes are identified using new issue ID numbers that include a product-specific prefix. Issues addressed in earlier releases and any associated known issue descriptions continue to use their original issue ID.
Issue ID Description
PAN-89936 A security-related fix was made to prevent the decryption of captured sessions through the ROBOT attack (CVE-2017-17841).
PAN-88341 Fixed an issue where VM-Series firewalls intermittently dropped fragmented traffic.
PAN-87205 Fixed an issue where a firewall in FIPS/CC mode intermittently switched to maintenance mode.
PAN-87145 Fixed an issue where importing a firewall configuration into a Panorama management server deleted certain Panorama shared objects.
PAN-86676 Fixed an issue on firewalls configured as DHCP servers and deployed in a high availability (HA) configuration where, after HA failover, commits failed and the following error message displayed: Management server failed to send phase 1 to client dhcpd .
PAN-86226 Fixed an issue on PA-5000 Series firewalls running PAN-OS 7.1.12 or a later 7.1 release where insufficient proxy memory caused decryption failures and prevented users from accessing the GlobalProtect portal or gateway.
PAN-85055 Fixed an issue where firewalls dropped TCP/UDP-based application traffic over a GlobalProtect VPN tunnel in high latency networks.
PAN-84856 Fixed an issue where the firewall misidentified Signiant-based traffic as HTTP-proxy traffic and therefore did not apply policy correctly to that traffic.
PAN-84808 Fixed an issue where high packet-descriptor utilization caused the firewall to drop traffic over an IPSec tunnel that used the Authentication Header protocol for key exchange.
PAN-84752 Fixed an issue where the firewall rebooted repeatedly because the User-ID process (userid) stopped responding after you committed a Mobile Security Manager (MDM) configuration that failed to connect the firewall to the MDM ( Network > GlobalProtect > MDM).
PAN-84219 Fixed an issue on PA-7000 Series firewalls where the logrcvr process had a memory leak.
PAN-82957 Fixed an issue where firewalls did not send queries for updated user mappings to User-ID agents; instead, the firewalls waited until the agents learned and forwarded new user mappings. By default with this fix, the firewall sends queries to the User-ID agents for unknown users. You can turn off the queries by running the persistent CLI command debug user-id query-unknown-ip off .
PAN-82321 Fixed an issue where the firewall rebooted because the User-ID process (useridd) stopped responding after you performed clone or shutdown operations on VMware vCenter.
PAN-82197 Fixed an issue where a Denial of Service (DoS) attack resulted in high CPU utilization on the firewall because it centralized session distribution on a single core instead of over all the cores.
PAN-82151 Fixed an issue where the Panorama virtual appliance in Legacy mode intermittently stopped processing logs, which caused its firewall connections to flap.
PAN-81171 Fixed an issue where firewalls that performed SSL decryption slowed the download of large files over HTTPS on macOS endpoints.
PAN-81100 Fixed an issue on the firewall and Panorama management server where a memory leak caused several operations to fail, such as commits, FQDN refreshes, and content updates.
PAN-81050 Fixed an issue on M-Series appliances and PA-7000 Series firewalls where the disk-failed , disk-faulty , and pair-disappeared RAID events had only a medium severity level in System logs. With this fix, these events have a critical severity level.
PAN-80687 Fixed an issue where the firewall dataplane restarted because the all_pktproc process suddenly started losing heartbeats.
PAN-80055 Fixed an issue where using the PAN-OS XML API to collect User-ID mappings caused slow responsiveness in the firewall web interface and CLI.
PAN-79247 Fixed an issue where the firewall did not apply your changes in host information profile (HIP) objects and profiles to Security policy rules and HIP Match logs unless GlobalProtect clients reconnected to the GlobalProtect gateway.
PAN-79167 Fixed an issue on the Panorama management server where the members count became zero for all existing shared address groups after you imported a firewall configuration.
PAN-77973 Fixed an issue where the passive firewall in an active/passive HA deployment lost HA session updates when the active peer had a heavy processing load.
PAN-77648 Fixed an issue where the show system state filter-pretty sw.dev.interface.config CLI command did not display the MAC address ( hwaddr ) or maximum transmission unit ( mtu ) for aggregate Ethernet interfaces.
PAN-76358 Fixed an issue on firewalls in an active/passive HA configuration where rebooting the passive HA peer caused its interfaces to flap.
PAN-75349 Fixed an issue where WF-500 appliances returned an error after 18 lines when you ran an SNMP query with a Palo Alto Networks private enterprise OID.
PAN-68878 Fixed an issue where firewalls in an active/active HA configuration sent data packets out of order.

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