CVE-2026-0250

GlobalProtect App: Buffer Overflow Vulnerability during connection to Portal or Gateway

State: Published
Severity: 5.2 Medium
Published: May 13, 2026
Updated: May 14, 2026
Reserved: Nov 3, 2025

Description

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man in the middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This vulnerability is triggered during the processing of requests and responses exchanged between Portal and Gateway.

The GlobalProtect app on iOS is not affected.

Scores

CVSS	Score	Vector	Source
4.0	5.2 Medium	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber	palo_alto

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
GlobalProtect AppPalo Alto Networks	6.3.0 to before 6.3.3-h9 (6.3.3-999)Affectedfrom 6.3.3-h9 (6.3.3-999)Not affected 6.2.0 to before 6.2.8-h10 (6.2.8-948)Affectedfrom 6.2.8-h10 (6.2.8-948)Not affected
GlobalProtect AppPalo Alto Networks	6.1 to before 6.1.13Affectedfrom 6.1.13Not affected
GlobalProtect AppPalo Alto Networks	6.3.0 to before 6.3.3-h2 (6.3.3-42)Affectedfrom 6.3.3-h2 (6.3.3-42)Not affected 6.0.0 to before 6.0.11Affectedfrom 6.0.11Not affected
GlobalProtect AppPalo Alto Networks	6.0 to before 6.0.13Affectedfrom 6.0.13Not affected
GlobalProtect AppPalo Alto Networks	6.0 to before 6.0.14Affectedfrom 6.0.14Not affected
GlobalProtect UWP AppPalo Alto Networks	6.3 to before 6.3.3-h10Affectedfrom 6.3.3-h10Not affected
GlobalProtect AppPalo Alto Networks	AllNot affected

References

https://security.paloaltonetworks.com/CVE-2026-0250vendor-advisory

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