HIGHCVE-2026-21256Published Modified CNA microsoft
CVE-2026-21256: GitHub Copilot and Visual Studio Remote Code Execution Vulnerability
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.
Metrics
- CVSS v3.1
- 8.8
- Severity
- HIGH
- Fixed in
- 17.14.26
- Affected Products
- 2
Fix available
17.14.2618.3.0
Affected packages
- Microsoft / Microsoft Visual Studio 2022 version 17.14< 17.14.26 (from 17.14.0)
- Microsoft / Microsoft Visual Studio 2026 version 18.3< 18.3.0 (from 18.3.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C