CVE-2026-21257
GitHub Copilot and Visual Studio Elevation of Privilege Vulnerability
CVSS Score
8.0
EPSS Score
0.0%
EPSS Percentile
12th
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.
| Vendor | microsoft |
| Product | microsoft visual studio 2022 version 17.14 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Feb 10, 2026 |
| Last Updated | Apr 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Microsoft Visual Studio 2022 version 17.14
17.14.0 < 17.14.26
Microsoft / Microsoft Visual Studio 2026 version 18.3
18.3.0 < 18.3.0