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CVE-2020-2021: Palo Alto Networks PAN-OS

EPSS4.3%No. 1443 of 1739 in KEV
CVE year2020~2 yrs before listing
Same vendor in KEV15
Same product12
FieldValue
VendorPalo Alto Networks
ProductPAN-OS
NamePalo Alto Networks PAN-OS Authentication Bypass Vulnerability
Added to KEV2022-03-25
US federal due date2022-04-15
Ransomware useKnown
CWECWE-347

CISA description

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

Other entries for this product

CVEVendor / productAddedEPSSRansomware
CVE-2026-0257Palo Alto Networks PAN-OS2026-05-2996.8%Known
CVE-2026-0300Palo Alto Networks PAN-OS2026-05-0631.7%Unknown
CVE-2025-0111Palo Alto Networks PAN-OS2025-02-201.9%Unknown
CVE-2025-0108Palo Alto Networks PAN-OS2025-02-1898.4%Unknown
CVE-2024-3393Palo Alto Networks PAN-OS2024-12-3029.1%Unknown
CVE-2024-9474Palo Alto Networks PAN-OS2024-11-1894.8%Known
CVE-2024-0012Palo Alto Networks PAN-OS2024-11-1899.8%Known
CVE-2024-3400Palo Alto Networks PAN-OS2024-04-1299.9%Known
CVE-2022-0028Palo Alto Networks PAN-OS2022-08-222.5%Unknown
CVE-2017-15944Palo Alto Networks PAN-OS2022-08-1898.3%Unknown
CVE-2019-1579Palo Alto Networks PAN-OS2022-01-1046.2%Known

NVD — CVE-2020-2021

Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

A Palo Alto Networks PAN-OS vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2022-03-25.