CVE-2026-0227 PoC — PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal

Source

https://github.com/TeeyaR/CVE-2026-0227-Palo-Alto

Associated Vulnerability

Title: PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal (CVE-2026-0227)
Description: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.

Description

A lightweight, non-destructive Python script to scan for exposed Palo Alto Networks GlobalProtect portals/gateways and fingerprint potential PAN-OS versions. Designed primarily to help identify systems potentially vulnerable to CVE-2026-0227 (unauthenticated DoS in GlobalProtect, disclosed January 2026).

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