An improper input validation vulnerability exists in the Windows Pre-Logon Access Provider (PLAP) component of the Palo Alto Networks GlobalProtect™ app on Windows devices which enables a man-in-the-middle (MitM) attacker to execute arbitrary code with SYSTEM privileges on an affected client. The GlobalProtect app on Linux, macOS, iOS, Android, and Chrome OS is not affected.
Published: 2026-08-13
Updated: 2026-08-13
Base Score: 9.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 8.4
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: High
Base Score: 7.7
Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:N/SA:N
Severity: High