


High
CVE-2026-0227
Palo Alto Networks
January 15, 2026
A high severity PAN-OS vulnerability (CVE-2026-0227) could allow unauthenticated attackers to trigger firewall DoS and force maintenance mode.
Palo Alto Networks
Severity is High. Successful exploitation results in firewall denial of service, interrupting VPN connectivity, remote access, and potentially core perimeter enforcement. Organisations relying on GlobalProtect for workforce connectivity face elevated availability risk. While no direct data compromise is indicated, loss of firewall availability presents operational and security exposure.
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