Jul 2026: Windows GDI Elevation of Privilege Vulnerability
CVE-2026-50387 Published on July 14, 2026

Windows GDI Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally.

Vendor Advisory NVD

Weakness Type

What is a Stack Overflow Vulnerability?

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CVE-2026-50387 has been classified to as a Stack Overflow vulnerability or weakness.

Products Associated with CVE-2026-50387

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Microsoft Windows 10

Microsoft Windows Server 2019

Microsoft Windows Server 2022

Microsoft Windows Server 2025

Microsoft Windows 11 25h2

Microsoft Windows 11 24h2

Microsoft Windows 11 26h1

Microsoft Windows Server 2016

Microsoft Windows Server 2012

Microsoft Windows Server 2012 R2

Microsoft Office Macos 2021

Microsoft Office

Microsoft Office Macos 2024

Microsoft Office 365

Affected Versions

Microsoft Office 365 for Mac:

Version 1.0.0 and below 16.111.26071215 is affected.

Microsoft Office for Android:

Version 16.0.1 and below 16.0.20228.20042 is affected.

Microsoft Office LTSC for Mac 2021:

Version 16.0.1 and below 16.111.26071215 is affected.

Microsoft Office LTSC for Mac 2024:

Version 16.0.0 and below 16.111.26071215 is affected.

Microsoft Windows 10 Version 1607:

Version 10.0.14393.0 and below 10.0.14393.9339 is affected.

Microsoft Windows 10 Version 1809:

Version 10.0.17763.0 and below 10.0.17763.9020 is affected.

Microsoft Windows 10 Version 21H2:

Version 10.0.19044.0 and below 10.0.19044.7548 is affected.

Microsoft Windows 10 Version 22H2:

Version 10.0.19045.0 and below 10.0.19045.7548 is affected.

Microsoft Windows 11 Version 24H2:

Version 10.0.26100.0 and below 10.0.26100.8875 is affected.

Microsoft Windows 11 Version 25H2:

Version 10.0.26200.0 and below 10.0.26200.8875 is affected.

Microsoft Windows 11 version 26H1:

Version 10.0.28000.0 and below 10.0.28000.2525 is affected.

Microsoft Windows Server 2012:

Version 6.2.9200.0 and below 6.2.9200.26226 is affected.

Microsoft Windows Server 2012 (Server Core installation):

Version 6.2.9200.0 and below 6.2.9200.26226 is affected.

Microsoft Windows Server 2012 R2:

Version 6.3.9600.0 and below 6.3.9600.23291 is affected.

Microsoft Windows Server 2012 R2 (Server Core installation):

Version 6.3.9600.0 and below 6.3.9600.23291 is affected.

Microsoft Windows Server 2016:

Version 10.0.14393.0 and below 10.0.14393.9339 is affected.

Microsoft Windows Server 2016 (Server Core installation):

Version 10.0.14393.0 and below 10.0.14393.9339 is affected.

Microsoft Windows Server 2019:

Version 10.0.17763.0 and below 10.0.17763.9020 is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.17763.0 and below 10.0.17763.9020 is affected.

Microsoft Windows Server 2022:

Version 10.0.20348.0 and below 10.0.20348.5386 is affected.

Microsoft Windows Server 2025:

Version 10.0.26100.0 and below 10.0.26100.33158 is affected.

Microsoft Windows Server 2025 (Server Core installation):

Version 10.0.26100.0 and below 10.0.26100.33158 is affected.

Exploit Probability

EPSS

1.92%

Percentile

77.79%