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Vulnerabilities ›

CVE-2026-21256

High

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.

CWE-77 — Weakness Type

                    Published: Feb 10, 2026                      ·  Modified: Feb 28, 2026                      ·  Source: NVD                

CVSS v3

8.8

🔗 NVD Official

📄 Description (English)

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.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 1

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21256

secure@microsoft.com

Vendor Advisory

📦 Affected Products / CPE 1 entries

microsoft:visual_studio_2022

📊 CVSS Score

8.8

/ 10.0 — High

📊 CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredN — None / Network

User InteractionR — Required

ScopeU — Unchanged

ConfidentialityH — High

IntegrityH — High

AvailabilityH — High

📋 Quick Facts

Severity High

CVSS Score8.8

CWECWE-77

EPSS0.03%

Exploit No

Patch ✓ Yes

Published 2026-02-10

Source Feed nvd

Views 1

🏷️ Tags

CWE-77

🏢 Vendor Advisories

🔗 https://msrc.microsoft.com/update-guide/vulnerabilit...

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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