CVE-2026-0279

PAN-OS 11.1.x before 11.1.16, 11.2.x before 11.2.13, and 12.1.x before 12.1.8 are affected by multiple cross-site scripting (XSS) flaws in the User-ID Authentication Portal (Captive Portal), GlobalProtect gateway/portal features, and Clientless VPN. An unauthenticated attacker can store or execut...

Critical Buffer Overflow in Palo Alto Networks PAN-OS User-ID Authentication Portal (CVE-2026-0300)

Overview On May 6, 2026, Palo Alto Networks published a security advisory for CVE-2026-0300, a critical unauthenticated buffer overflow vulnerability affecting PAN-OS PA-Series and VM-Series firewall appliances. Prisma Access, Cloud NGFW, and Panorama appliances are not affected by this...