Main Vulnerability Database Vulnerabilities #VU138065

Command injection in Microsoft Windows and Windows Server - CVE-2026-50488

Published: July 17, 2026

Vulnerability identifier: #VU138065

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-50488

CWE-ID: CWE-77

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to command injection in Windows Clipboard User Service when processing command input. A local user can inject crafted command elements to escalate privileges.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-50488

Install security update from vendor's website.

Microsoft Windows - addressed in versions 11 24H2 10.0.26100.8875, 11 25H2 10.0.26200.8875, 11 26H1 10.0.28000.2525
Windows Server - addressed in versions 2012 R2 6.3.9600.23291, 2025 10.0.26100.33158

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-50488

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