CVE-2020-1996: Palo Alto Networks PAN-OS

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

A missing authorization vulnerability in the management server component of PAN-OS Panorama allows a remote unauthenticated user to inject messages into the management server ms.log file. This vulnerability can be leveraged to obfuscate an ongoing attack or fabricate log entries in the ms.log file This issue affects: All versions of PAN-OS 7.1 and 8.0; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.9.

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, up to and including 8.1.13; from 9.0.0, up to and including 9.0.8

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