CVE-2020-2021
Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
What is affected
| Vendor | Palo Alto Networks |
|---|---|
| Product | PAN-OS |
| Weakness | CWE-347 |
The vulnerability
Palo Alto Networks PAN-OS contains a vulnerability in SAML which allows an attacker to bypass authentication.
Required action
Apply updates per vendor instructions.
US federal civilian agencies were required to act by 15 April 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Ransomware
CISA records this vulnerability as having been used in ransomware campaigns. That is a confirmed observation, not an assessment of likelihood.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 12 Nov 2026, 21:26. Nothing here is our own assessment. For the technical scoring, see the NVD record below.
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