Firetruck

CVE-2026-0300

KEV
Updated Oct 15, 2026 · PUBLISHED
View KEV entry →

Description

Palo Alto Networks PAN-OS contains an out-of-bounds write vulnerability in the User-ID Authentication Portal (aka Captive Portal) service that can allow an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Cloud NGFWPalo Alto Networks / Cloud NGFWAllunaffected
PAN-OSPalo Alto Networks / PAN-OS>= 10.2.0, < 10.2.18-h6affected
PAN-OSPalo Alto Networks / PAN-OS>= 11.1.0, < 11.1.15affected
PAN-OSPalo Alto Networks / PAN-OS>= 11.2.0, < 11.2.12affected
PAN-OSPalo Alto Networks / PAN-OS>= 12.1.0, < 12.1.7affected
Prisma AccessPalo Alto Networks / Prisma AccessAllunaffected
RUGGEDCOM APE1808Siemens / RUGGEDCOM APE1808>= 0, < *affected