SAML authentication bypass in PAN-OS

Published: 2020-06-30
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-2021
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
Palo Alto PAN-OS
Operating systems & Components / Operating system

Vendor Palo Alto Networks, Inc.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) SAML authenticated bypass

EUVDB-ID: #VU29387

Risk: High


CVE-ID: CVE-2020-2021

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: Yes


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing SAML authentication requests. A remote attacker can bypass authentication process and gain unauthorized access to protected resources.


Install updates from vendor's website.

Vulnerable software versions

Palo Alto PAN-OS: 9.1.0 - 9.1.2, 9.0.0 - 9.0.8, 8.1 - 8.1.14, 8.0 - 8.0.21, 7.1 - 7.1.26

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?