CVE-2026-21257

—

CVSS 3.1

8.0 high

EPSS

<1%p57

Published

Feb 10, 2026 (Feb 10, 2026)

Modified

Jun 17, 2026

Description

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

Vendors: microsoft
Products: visual studio 2022
Weakness: CWE-77
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.9%)

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