CISA has warned of active exploitation of a vulnerability affecting the GlobalProtect portal and gateway in Palo Alto Networks’ PAN-OS software. Tracked as CVE-2026-0257, the vulnerability may allow a remote unauthenticated attacker to successfully establish a VPN connection through the GlobalProtect gateway of an affected appliance. Palo Alto has also mentioned in their advisory that … Continue reading “CISA Warns of PAN-OS GlobalProtect Authentication Bypass Vulnerability (CVE-2026-0257)”