CVE-2026-21256

No fix known EPSS 1%CVSS 8.8

Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.

Published 2026-02-10 · CVE record · OSV

Products: Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.3