CVE-2020-2021Actively exploitedAdded to KEV 2022-03-25Known ransomware campaign use

Palo Alto Networks PAN-OS Authentication Bypass Vulnerability

Palo Alto Networks, PAN-OS

Description

Palo Alto Networks PAN-OS contains a vulnerability in SAML which allows an attacker to bypass authentication.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

Medium

4.4%

estimated chance of real-world exploitation in the next 30 days, higher than 91.2% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-04-15

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