Microsoft Windows Subsystem buffer overflow

Summaryinfo

A vulnerability, which was classified as problematic, was found in Microsoft Windows Subsystem. Affected by this issue is some unknown functionality. Executing a manipulation can lead to buffer overflow. This vulnerability is registered as CVE-2026-57968. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in Microsoft Windows Subsystem and classified as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality. CVE summarizes:

Buffer over-read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

The advisory is shared for download at msrc.microsoft.com. This vulnerability was named CVE-2026-57968 since 06/26/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/15/2026).

Upgrading to version 2.7.8 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• Subsystem

License

• commercial

Website

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

CPE 2.3info

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CPE 2.2info

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