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CVE-2026-21257

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CVE-2026-21257

Published: Feb 10, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

8.0

HIGH

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.

VendorProductVersions

Microsoft

Microsoft Visual Studio 2022 version 17.14

affected
17.14.0 - < 17.14.26

Microsoft

Microsoft Visual Studio 2026 version 18.3

affected
18.3.0 - < 18.3.0

Weaknesses (CWE)

CWE-77

CVSS v3.1 Details

CVSS v3.1 Vector

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

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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