CVE-2025-64660: GitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability
CVE-2025-64660 is a remote code execution vulnerability in GitHub Copilot and Visual Studio Code, rated Important by Microsoft, with a CVSS 3.1 base score of 8 (High). An attacker can exploit it remotely over the network, with low privileges and only if a user takes an action. Microsoft has not reported exploitation in the wild and rates exploitation as less likely. The EPSS model estimates a 0.60% probability of exploitation activity in the next 30 days, higher than 49% of all scored vulnerabilities. Microsoft released the fix on 20 November 2025, outside Patch Tuesday. It affects 1 product in 1 product family (Developer Tools).
Key facts
- CVE ID
- CVE-2025-64660
- Severity
- High CVSS 8
- Microsoft severity
- Important
- Impact
- Remote Code Execution
- Exploited in the wild
- No
- Publicly disclosed
- No
- Exploitation likelihood
- Less Likely
- Weakness
- CWE-284
- EPSS
- 0.60% (percentile 49%)
- CISA KEV
- Not listed
- Released
- Last updated
- Patch Tuesday
- November 2025 Patch Tuesday
- Product families
- Developer Tools
CVSS score and vector
Microsoft scores CVE-2025-64660 at 8 (temporal 7) using CVSS 3.1. Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
| Metric | Value |
|---|---|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality impact | High |
| Integrity impact | High |
| Availability impact | High |
| Exploit code maturity | Unproven |
| Remediation level | Official fix |
| Report confidence | Confirmed |
Description
Improper access control in GitHub Copilot and Visual Studio Code allows an authorized attacker to execute code over a network.
Frequently asked questions (Microsoft)
According to the CVSS metric, privileges are required (PR:L) and user interaction is required (UI:R). How could an attacker exploit this remote code execution vulnerability?
An authenticated attacker could place a malicious file in the targeted repo. The user would then have to trust the file on Visual Studio Code and ask for assistance from GitHub Copilot.
Affected products (1)
Developer Tools
| Product | Security update | Type | Fixed build | Restart |
|---|---|---|---|---|
| Visual Studio Code | Release Notes | Security Update | 1.106.2 | Maybe |
NIST NVD data
- NVD status
- Modified
- NVD CVSS
- 8 (HIGH)
- NVD weakness
- CWE-284
- Published to NVD
- NVD last modified
Affected configurations (CPE)
| Product | Vulnerable versions |
|---|---|
| visual studio code | before 1.106.2 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64660 (Vendor Advisory)
Acknowledgments
Revision history
| Version | Date | Description |
|---|---|---|
| 1.0 | Information published. | |
| 1.1 | The following revisions have been made: 1) In the Security Updates table, corrected the impact entries to Remote Code Execution. 2) The CVSS scores have been updated. These are informational changes only. Customers who have successfully installed the update do not need to take any further action. |