Microsoft Windows 11 24H2/11 25H2/Server 2025 Clipboard User Service os command injection

Summaryinfo

A vulnerability marked as problematic has been reported in Microsoft Windows 11 24H2/11 25H2/Server 2025. Affected is an unknown function of the component Clipboard User Service. Performing a manipulation results in os command injection. This vulnerability is known as CVE-2026-50488. Attacking locally is a requirement. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft Windows 11 24H2/11 25H2/Server 2025. This affects an unknown code of the component Clipboard User Service. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper neutralization of special elements used in a command ('command injection') in Windows Clipboard User Service allows an authorized attacker to elevate privileges locally.

It is possible to read the advisory at msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2026-50488 since 06/04/2026. The exploitability is told to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/14/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• 11 24H2
• 11 25H2
• Server 2025

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

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