CVE-2025-26646
C# vulnerability analysis and mitigation

Overview

A vulnerability identified as CVE-2025-26646 was discovered in .NET, Visual Studio, and Build Tools for Visual Studio. The vulnerability was disclosed on May 13, 2025, and affects the file name or path control mechanisms in these Microsoft products (NVD).

Technical details

The vulnerability is classified as an external control of file name or path vulnerability (CWE-73). It has been assigned a CVSS v3.1 base score of 8.0 (HIGH) with the following vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H, indicating network-based attack vector with low attack complexity, requiring low privileges and user interaction (NVD).

Impact

The vulnerability allows an authorized attacker to perform spoofing over a network, potentially compromising the confidentiality, integrity, and availability of affected systems (NVD, Wiz).

Mitigation and workarounds

Red Hat has released security updates to address this vulnerability, including .NET SDK 8.0.116 and .NET Runtime 8.0.16. Users are advised to update to these latest versions to mitigate the vulnerability (RedHat).

Additional resources


SourceThis report was generated using AI

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