CVE-2020-2001: Palo Alto Networks PAN-OS

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

An external control of path and data vulnerability in the Palo Alto Networks PAN-OS Panorama XSLT processing logic that allows an unauthenticated user with network access to PAN-OS management interface to write attacker supplied file on the system and elevate privileges. This issue affects: All PAN-OS 7.1 Panorama and 8.0 Panorama versions; PAN-OS 8.1 versions earlier than 8.1.12 on Panorama; PAN-OS 9.0 versions earlier than 9.0.6 on Panorama.

Affected products

• Palo Alto Networks PAN-OS: from 7.1.0, up to and including 7.1.26; from 8.0.0, up to and including 8.0.20; from 8.1.0, before 8.1.12 (fixed in 8.1.12); from 9.0.0, before 9.0.6 (fixed in 9.0.6)

Published 2020-05-13. Last modified 2026-06-17.