What’s Vulnerable › Vulnerabilities

CVE-2025-21264: Visual Studio Code Security Feature Bypass Vulnerability

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-13 · updated 2026-06-17
• Weakness: CWE-552

Description

Files or directories accessible to external parties in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

Affected products

• Microsoft Visual Studio Code: before 1.100.1 — fixed in 1.100.1
• Microsoft Visual Studio Code CoPilot Chat Extension: from 0.27.0 before 0.27.2 — fixed in 0.27.2
• Microsoft Visual Studio Code: from 1.0.0 before 1.100.1 — fixed in 1.100.1

How to fix

Upgrade to a fixed version: Microsoft Visual Studio Code 1.100.1; Microsoft Visual Studio Code CoPilot Chat Extension 0.27.2; Microsoft Visual Studio Code 1.100.1. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21264

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