HIGH 8.8 Microsoft
CVE-2026-21256
GitHub Copilot and Visual Studio Remote Code Execution Vulnerability
Microsoft Security Update 2026-Feb: GitHub Copilot and Visual Studio Remote Code Execution Vulnerability
Affected Products
- Microsoft Visual Studio 2022 version 17.14
- Microsoft Visual Studio 2026 version 18.3
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21256
- https://nvd.nist.gov/vuln/detail/CVE-2026-21256
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-02-10 via Microsoft. Affected: Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.3.
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