CVE-2026-0310: PAN-OS Buffer Overflow Can Enable Root RCE on PA-Series Firewalls

Palo Alto Networks has released security updates for a high-severity buffer overflow vulnerability affecting PAN-OS software. Tracked as CVE-2026-0310, the issue resides in XML processing functionality and can allow an unauthenticated remote attacker to cause a denial-of-service condition on VM-Series firewalls or execute arbitrary code with root privileges on vulnerable PA-Series hardware firewalls. The flaw requires no special configuration to be present. An attacker only…