High [CVE-2026-0227] vulnerability in Palo Alto Networks PAN-OS software
This high-severity Palo Alto Networks advisory covers CVE-2026-0227 affecting PAN-OS.
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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.
- Prisma Access 11.2
- Prisma Access 10.2
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- PAN-OS >= 12.1.4
- PAN-OS >= 12.1.3-h3
- PAN-OS >= 11.2.10-h2
- PAN-OS >= 11.2.7-h8
- PAN-OS >= 11.2.4-h15
- PAN-OS >= 11.1.13
- PAN-OS >= 11.1.10-h9
- PAN-OS >= 11.1.6-h23
- PAN-OS >= 11.1.4-h27
- PAN-OS >= 10.2.18-h1
- PAN-OS >= 10.2.16-h6
- PAN-OS >= 10.2.13-h18
- PAN-OS >= 10.2.10-h31
- PAN-OS >= 10.2.7-h32
- PAN-OS >= 10.1.14-h20
- Prisma Access >= 11.2.7-h8
- Prisma Access >= 10.2.10-h29
- Prisma Access >= 10.2.4-h43
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- PAN-OS 10.1 10.1.0 through 10.1.14Upgrade to 10.1.14-h20 or later.
- No known workarounds exist for this issue.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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