GlobalProtect Agent 4.1.0 for Windows and GlobalProtect Agent 4.1.10 and earlier for macOS may allow a local authenticated attacker who has compromised the end-user account and gained the ability to inspect memory, to access authentication and/or session tokens and replay them to spoof the VPN session and gain access as the user.
Palo Alto Networks GlobalProtect Agent before 4.0.3 allows attackers with administration rights on the local station to gain SYSTEM privileges via vectors involving "image path execution hijacking."
Palo Alto Networks GlobalProtect before 1.1.7, and NetConnect, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof portal servers and obtain sensitive information via a crafted certificate.