Palo Alto Networks PAN-OS
YES - ON THE CISA KEV LIST
CVE-2020-2021
Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
overdue since 2022-04-15
Palo Alto Networks: 16 entries (0.9% of all KEV entries are from this vendor); 3 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
Palo Alto Networks PAN-OS contains a vulnerability in SAML which allows an attacker to bypass authentication.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-2021
References
Other KEV entries for this vendor: Palo Alto Networks
- CVE-2026-0322 - PAN-OS (2026-10-14)
- CVE-2026-0257 - PAN-OS (2026-05-29)
- CVE-2026-0300 - PAN-OS (2026-05-06)
- CVE-2025-0111 - PAN-OS (2025-02-20)
- CVE-2025-0108 - PAN-OS (2025-02-18)
- CVE-2024-3393 - PAN-OS (2024-12-30)
- CVE-2024-9474 - PAN-OS (2024-11-18)
- CVE-2024-0012 - PAN-OS (2024-11-18)
Go deeper
KEV deadlines are a governance problem as much as a patching one. TrebSec's AI governance packs help small teams document, assign, and evidence exactly this work.
AI Governance Policy Pack - $79 AI Vendor Workbook - $49 Both packs bundled - $99