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CVE-2026-0227

PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 12.1.4, 11.2.10-h2, 11.1.13, 10.2.18-h1, 10.1.14-h20, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Palo Alto Networks Cloud NGFW

    Version range not reported

  • Palo Alto Networks PAN-OS

    From 12.1.2 · fixed in 12.1.4; From 11.2.0 · fixed in 11.2.10-h2; From 11.1.0 · fixed in 11.1.13; From 10.2.0 · fixed in 10.2.18-h1; From 10.1.0 · fixed in 10.1.14-h20

  • Palo Alto Networks Prisma Access

    From 11.2 · fixed in 11.2.7-h8; From 10.2 · fixed in 10.2.10-h29

References 1

security.paloaltonetworks.com