CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-21523

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 12.9%

CVSS Severity

CVSS v3 Score 8.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21523

Products affected by CVE-2026-21523

Microsoft » Visual Studio Code » Version: 1.100.0

cpe:2.3:a:microsoft:visual_studio_code:1.100.0
Microsoft » Visual Studio Code » Version: 1.100.1

cpe:2.3:a:microsoft:visual_studio_code:1.100.1
Microsoft » Visual Studio Code » Version: 1.100.2

cpe:2.3:a:microsoft:visual_studio_code:1.100.2
Microsoft » Visual Studio Code » Version: 1.100.3

cpe:2.3:a:microsoft:visual_studio_code:1.100.3
Microsoft » Visual Studio Code » Version: 1.101.0

cpe:2.3:a:microsoft:visual_studio_code:1.101.0
Microsoft » Visual Studio Code » Version: 1.101.1

cpe:2.3:a:microsoft:visual_studio_code:1.101.1
Microsoft » Visual Studio Code » Version: 1.101.2

cpe:2.3:a:microsoft:visual_studio_code:1.101.2
Microsoft » Visual Studio Code » Version: 1.102.2

cpe:2.3:a:microsoft:visual_studio_code:1.102.2
Microsoft » Visual Studio Code » Version: 1.102.3

cpe:2.3:a:microsoft:visual_studio_code:1.102.3
Microsoft » Visual Studio Code » Version: 1.103.0

cpe:2.3:a:microsoft:visual_studio_code:1.103.0
Microsoft » Visual Studio Code » Version: 1.103.1

cpe:2.3:a:microsoft:visual_studio_code:1.103.1
Microsoft » Visual Studio Code » Version: 1.103.2

cpe:2.3:a:microsoft:visual_studio_code:1.103.2
Microsoft » Visual Studio Code » Version: 1.104.0

cpe:2.3:a:microsoft:visual_studio_code:1.104.0
Microsoft » Visual Studio Code » Version: 1.104.1

cpe:2.3:a:microsoft:visual_studio_code:1.104.1
Microsoft » Visual Studio Code » Version: 1.104.2

cpe:2.3:a:microsoft:visual_studio_code:1.104.2
Microsoft » Visual Studio Code » Version: 1.104.3

cpe:2.3:a:microsoft:visual_studio_code:1.104.3
Microsoft » Visual Studio Code » Version: 1.105.0

cpe:2.3:a:microsoft:visual_studio_code:1.105.0
Microsoft » Visual Studio Code » Version: 1.105.1

cpe:2.3:a:microsoft:visual_studio_code:1.105.1
Microsoft » Visual Studio Code » Version: 1.56.1

cpe:2.3:a:microsoft:visual_studio_code:1.56.1
Microsoft » Visual Studio Code » Version: 1.57.1

cpe:2.3:a:microsoft:visual_studio_code:1.57.1
Microsoft » Visual Studio Code » Version: 1.58.1

cpe:2.3:a:microsoft:visual_studio_code:1.58.1
Microsoft » Visual Studio Code » Version: 1.63.1

cpe:2.3:a:microsoft:visual_studio_code:1.63.1
Microsoft » Visual Studio Code » Version: 1.63.2

cpe:2.3:a:microsoft:visual_studio_code:1.63.2
Microsoft » Visual Studio Code » Version: 1.80.0

cpe:2.3:a:microsoft:visual_studio_code:1.80.0
Microsoft » Visual Studio Code » Version: 1.80.1

cpe:2.3:a:microsoft:visual_studio_code:1.80.1
Microsoft » Visual Studio Code » Version: 1.80.2

cpe:2.3:a:microsoft:visual_studio_code:1.80.2
Microsoft » Visual Studio Code » Version: 1.81.0

cpe:2.3:a:microsoft:visual_studio_code:1.81.0
Microsoft » Visual Studio Code » Version: 1.81.1

cpe:2.3:a:microsoft:visual_studio_code:1.81.1
Microsoft » Visual Studio Code » Version: 1.82.0

cpe:2.3:a:microsoft:visual_studio_code:1.82.0
Microsoft » Visual Studio Code » Version: 1.82.1

cpe:2.3:a:microsoft:visual_studio_code:1.82.1
Microsoft » Visual Studio Code » Version: 1.82.2

cpe:2.3:a:microsoft:visual_studio_code:1.82.2
Microsoft » Visual Studio Code » Version: 1.82.3

cpe:2.3:a:microsoft:visual_studio_code:1.82.3
Microsoft » Visual Studio Code » Version: 1.83.0

cpe:2.3:a:microsoft:visual_studio_code:1.83.0
Microsoft » Visual Studio Code » Version: 1.83.1

cpe:2.3:a:microsoft:visual_studio_code:1.83.1
Microsoft » Visual Studio Code » Version: 1.84.0

cpe:2.3:a:microsoft:visual_studio_code:1.84.0
Microsoft » Visual Studio Code » Version: 1.84.1

cpe:2.3:a:microsoft:visual_studio_code:1.84.1
Microsoft » Visual Studio Code » Version: 1.84.2

cpe:2.3:a:microsoft:visual_studio_code:1.84.2
Microsoft » Visual Studio Code » Version: 1.85.0

cpe:2.3:a:microsoft:visual_studio_code:1.85.0
Microsoft » Visual Studio Code » Version: 1.85.1

cpe:2.3:a:microsoft:visual_studio_code:1.85.1
Microsoft » Visual Studio Code » Version: 1.85.2

cpe:2.3:a:microsoft:visual_studio_code:1.85.2
Microsoft » Visual Studio Code » Version: 1.86.0

cpe:2.3:a:microsoft:visual_studio_code:1.86.0
Microsoft » Visual Studio Code » Version: 1.86.1

cpe:2.3:a:microsoft:visual_studio_code:1.86.1
Microsoft » Visual Studio Code » Version: 1.86.2

cpe:2.3:a:microsoft:visual_studio_code:1.86.2
Microsoft » Visual Studio Code » Version: 1.87.0

cpe:2.3:a:microsoft:visual_studio_code:1.87.0
Microsoft » Visual Studio Code » Version: 1.87.1

cpe:2.3:a:microsoft:visual_studio_code:1.87.1
Microsoft » Visual Studio Code » Version: 1.87.2

cpe:2.3:a:microsoft:visual_studio_code:1.87.2
Microsoft » Visual Studio Code » Version: 1.88.0

cpe:2.3:a:microsoft:visual_studio_code:1.88.0
Microsoft » Visual Studio Code » Version: 1.88.1

cpe:2.3:a:microsoft:visual_studio_code:1.88.1
Microsoft » Visual Studio Code » Version: 1.89.0

cpe:2.3:a:microsoft:visual_studio_code:1.89.0
Microsoft » Visual Studio Code » Version: 1.89.1

cpe:2.3:a:microsoft:visual_studio_code:1.89.1
Microsoft » Visual Studio Code » Version: 1.90.0

cpe:2.3:a:microsoft:visual_studio_code:1.90.0
Microsoft » Visual Studio Code » Version: 1.90.1

cpe:2.3:a:microsoft:visual_studio_code:1.90.1
Microsoft » Visual Studio Code » Version: 1.90.2

cpe:2.3:a:microsoft:visual_studio_code:1.90.2
Microsoft » Visual Studio Code » Version: 1.91.0

cpe:2.3:a:microsoft:visual_studio_code:1.91.0
Microsoft » Visual Studio Code » Version: 1.91.1

cpe:2.3:a:microsoft:visual_studio_code:1.91.1
Microsoft » Visual Studio Code » Version: 1.92.0

cpe:2.3:a:microsoft:visual_studio_code:1.92.0
Microsoft » Visual Studio Code » Version: 1.92.1

cpe:2.3:a:microsoft:visual_studio_code:1.92.1
Microsoft » Visual Studio Code » Version: 1.92.2

cpe:2.3:a:microsoft:visual_studio_code:1.92.2
Microsoft » Visual Studio Code » Version: 1.93.0

cpe:2.3:a:microsoft:visual_studio_code:1.93.0
Microsoft » Visual Studio Code » Version: 1.93.1

cpe:2.3:a:microsoft:visual_studio_code:1.93.1
Microsoft » Visual Studio Code » Version: 1.94.0

cpe:2.3:a:microsoft:visual_studio_code:1.94.0
Microsoft » Visual Studio Code » Version: 1.94.1

cpe:2.3:a:microsoft:visual_studio_code:1.94.1
Microsoft » Visual Studio Code » Version: 1.94.2

cpe:2.3:a:microsoft:visual_studio_code:1.94.2
Microsoft » Visual Studio Code » Version: 1.95.0

cpe:2.3:a:microsoft:visual_studio_code:1.95.0
Microsoft » Visual Studio Code » Version: 1.95.1

cpe:2.3:a:microsoft:visual_studio_code:1.95.1
Microsoft » Visual Studio Code » Version: 1.95.2

cpe:2.3:a:microsoft:visual_studio_code:1.95.2
Microsoft » Visual Studio Code » Version: 1.95.3

cpe:2.3:a:microsoft:visual_studio_code:1.95.3
Microsoft » Visual Studio Code » Version: 1.96.0

cpe:2.3:a:microsoft:visual_studio_code:1.96.0
Microsoft » Visual Studio Code » Version: 1.96.1

cpe:2.3:a:microsoft:visual_studio_code:1.96.1
Microsoft » Visual Studio Code » Version: 1.96.2

cpe:2.3:a:microsoft:visual_studio_code:1.96.2
Microsoft » Visual Studio Code » Version: 1.96.3

cpe:2.3:a:microsoft:visual_studio_code:1.96.3
Microsoft » Visual Studio Code » Version: 1.96.4

cpe:2.3:a:microsoft:visual_studio_code:1.96.4
Microsoft » Visual Studio Code » Version: 1.97.0

cpe:2.3:a:microsoft:visual_studio_code:1.97.0
Microsoft » Visual Studio Code » Version: 1.97.1

cpe:2.3:a:microsoft:visual_studio_code:1.97.1
Microsoft » Visual Studio Code » Version: 1.97.2

cpe:2.3:a:microsoft:visual_studio_code:1.97.2
Microsoft » Visual Studio Code » Version: 1.98.0

cpe:2.3:a:microsoft:visual_studio_code:1.98.0
Microsoft » Visual Studio Code » Version: 1.98.1

cpe:2.3:a:microsoft:visual_studio_code:1.98.1
Microsoft » Visual Studio Code » Version: 1.98.2

cpe:2.3:a:microsoft:visual_studio_code:1.98.2
Microsoft » Visual Studio Code » Version: 1.99.0

cpe:2.3:a:microsoft:visual_studio_code:1.99.0
Microsoft » Visual Studio Code » Version: 1.99.1

cpe:2.3:a:microsoft:visual_studio_code:1.99.1
Microsoft » Visual Studio Code » Version: 1.99.2

cpe:2.3:a:microsoft:visual_studio_code:1.99.2
Microsoft » Visual Studio Code » Version: 1.99.3

cpe:2.3:a:microsoft:visual_studio_code:1.99.3

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-21523

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