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Vulnerability · Published May 13, 2026 · Assigned by palo_alto

CVE-2026-0250GlobalProtect App: Buffer Overflow Vulnerability during connection to Portal or Gateway

Medium 5.2

In plain English

A medium-severity out-of-bounds write in GlobalProtect App from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 4.0)5.2Medium
Exploit odds (30 days)0.4%top 66.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h9 (6.3.3-999)6.2.0 – before 6.2.8-h10 (6.2.8-948)
Palo Alto Networks GlobalProtect App 6.1 – before 6.1.13
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h2 (6.3.3-42)6.0.0 – before 6.0.11
Palo Alto Networks GlobalProtect App 6.0 – before 6.0.13
Palo Alto Networks GlobalProtect App 6.0 – before 6.0.14
Palo Alto Networks GlobalProtect UWP App 6.3 – before 6.3.3-h10
Palo Alto Networks GlobalProtect App see references

Weakness: CWE-787 · Vector: 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

References