// #prisma-access

PAN-OS GlobalProtect Denial-of-Service CVE-2026-0227 — PoC Published, Firewalls Risk Forced Maintenance Mode

A proof-of-concept exploit has been published for CVE-2026-0227, a denial-of-service vulnerability in Palo Alto Networks PAN-OS affecting GlobalProtect gateways and portals. An unauthenticated remote attacker can crash the firewall into a mandatory maintenance mode by sending malformed requests to the GlobalProtect interface. Prisma Access deployments are also affected. Palo Alto has released patches; the PoC significantly elevates exploitation risk.