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Vulnerability DatabaseCVE-2026-21523

CVE-2026-21523: 
Visual Studio Code vulnerability analysis and mitigation

Time-of-check time-of-use (toctou) race condition in GitHub Copilot and Visual Studio allows an authorized attacker to execute code over a network.

Source: NVD

Related Visual Studio Code vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-55319CRITICAL9.8
  • Visual Studio CodeVisual Studio Code
  • cpe:2.3:a:microsoft:visual_studio_code
NoYesSep 12, 2025
CVE-2026-21518HIGH8.8
  • Visual Studio CodeVisual Studio Code
  • cpe:2.3:a:microsoft:visual_studio_code
NoYesFeb 10, 2026
CVE-2026-21523HIGH8
  • Visual Studio CodeVisual Studio Code
  • cpe:2.3:a:microsoft:visual_studio_code
NoYesFeb 10, 2026
CVE-2025-64660HIGH8
  • Visual Studio CodeVisual Studio Code
  • cpe:2.3:a:microsoft:visual_studio_code
NoYesNov 20, 2025
CVE-2025-62453MEDIUM5
  • Visual Studio CodeVisual Studio Code
  • cpe:2.3:a:microsoft:visual_studio_code
NoYesNov 11, 2025

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