CVE-2026-21257
Analyzed Analyzed - Analysis Complete
Command Injection in GitHub Copilot and Visual Studio Enables Privilege Escalation

Publication date: 2026-02-10

Last updated on: 2026-02-11

Assigner: Microsoft Corporation

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.
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Meta Information
Published
2026-02-10
Last Modified
2026-02-11
Generated
2026-06-16
AI Q&A
2026-02-10
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21257
EUVD
EUVD-2026-7327
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft visual_studio_2022 From 17.14.0 (inc) to 17.14.26 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
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Executive Summary

This vulnerability is a command injection issue caused by improper neutralization of special elements used in commands within GitHub Copilot and Visual Studio. It allows an authorized attacker to execute commands in a way that elevates their privileges over a network.

Impact Analysis

The vulnerability can allow an authorized attacker to elevate their privileges, potentially gaining higher-level access than intended. This can lead to unauthorized actions, data compromise, or disruption of services within the affected software environments.

Compliance Impact

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