Key Findings Palo Alto Networks addressed a high-severity vulnerability, tracked as CVE-2026-0227 (CVSS score: 7.7), affecting GlobalProtect Gateway and Portal. A proof-of-concept (PoC) exploit for the vulnerability exists. The flaw allows an unauthenticated attacker to cause a denial-of-service (DoS) condition that can force the firewall into maintenance mode, disrupting network traffic and firewall protection. The vulnerability affects multiple versions of Palo Alto Network
