CVE-2026-0227: Palo Alto Networks Fixes GlobalProtect DoS Flaw Allowing Remote Firewall Disruption
ID: d1737803-ace7-5553-a34f-7a2ae7969026
STIX ID: report--d1737803-ace7-5553-a34f-7a2ae7969026
Feed Name: SOC Prime Blog
Threat Score
**Executive summary:** On January 14, 2026 Palo Alto Networks disclosed CVE-2026-0227, a high-severity (CVSS 7.7) denial-of-service vulnerability in GlobalProtect PAN-OS allowing unauthenticated attackers to disrupt firewall protections and potentially force devices into maintenance mode; a proof-of-concept exists, Shadowserver reports roughly 6,000 Palo Alto firewalls exposed online, and immediate patching is advised though no active exploitation has been confirmed.
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