HIGH 8.0 Microsoft
CVE-2026-21523
GitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability
Microsoft Security Update 2026-Feb: GitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability
Affected Products
- Microsoft Visual Studio Code CoPilot Chat Extension
- Visual Studio Code
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21523
- https://nvd.nist.gov/vuln/detail/CVE-2026-21523
This high severity vulnerability with a CVSS score of 8.0 was published on 2026-02-10 via Microsoft. Affected: Microsoft Visual Studio Code CoPilot Chat Extension, Visual Studio Code.
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