Palo Alto PAN-OS 0-Day Exploited to Execute Arbitrary Code With Root Privileges on Firewalls

A critical vulnerability in Palo Alto Networks PAN-OS is putting enterprise firewalls at risk, allowing unauthenticated attackers to execute arbitrary code with root privileges. Tracked as CVE-2026-0300, the flaw affects the User-ID Authentication Portal (Captive Portal) and has already seen limited real-world exploitation, particularly in environments where the service is exposed to the internet. The […]

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