CVE-2025-24039

7.3 HIGH

📋 TL;DR

This CVE describes an elevation of privilege vulnerability in Visual Studio Code where an attacker could execute arbitrary code with higher privileges than intended. It affects users running Visual Studio Code on Windows systems. The vulnerability stems from improper handling of DLL loading paths (CWE-427).

💻 Affected Systems

Products:
  • Visual Studio Code
Versions: Versions prior to 1.95.0
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects Windows installations. Linux and macOS versions are not vulnerable. Requires local access to the system.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker could gain SYSTEM-level privileges on the affected Windows machine, potentially leading to complete system compromise, data theft, or installation of persistent malware.

🟠

Likely Case

Local authenticated attackers could escalate privileges to install software, modify system settings, or access restricted files and directories they shouldn't normally access.

🟢

If Mitigated

With proper user account controls and limited privileges, impact would be contained to the user's context rather than full system compromise.

🌐 Internet-Facing: LOW - This is primarily a local privilege escalation vulnerability requiring local access to exploit.
🏢 Internal Only: MEDIUM - Internal users with local access could exploit this to escalate privileges, particularly concerning in shared or multi-user environments.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires local access and some user interaction or specific conditions. No public exploits are currently available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Visual Studio Code 1.95.0 and later

Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24039

Restart Required: No

Instructions:

1. Open Visual Studio Code. 2. Click on Help menu. 3. Select Check for Updates. 4. Install update to version 1.95.0 or later. 5. Alternatively, download latest version from https://code.visualstudio.com/download

🔧 Temporary Workarounds

Restrict DLL loading paths

windows

Configure Windows to restrict DLL loading from untrusted locations using Group Policy or registry settings

🧯 If You Can't Patch

  • Run Visual Studio Code with least privilege accounts (non-admin)
  • Implement application whitelisting to prevent unauthorized DLL loading

🔍 How to Verify

Check if Vulnerable:

Check Visual Studio Code version: Open VS Code, go to Help > About. If version is below 1.95.0, system is vulnerable.

Check Version:

code --version

Verify Fix Applied:

Verify version is 1.95.0 or higher in Help > About menu.

📡 Detection & Monitoring

Log Indicators:

  • Windows Event Logs showing unexpected DLL loading from unusual paths
  • Process creation events showing VS Code spawning elevated processes

Network Indicators:

  • No specific network indicators as this is local privilege escalation

SIEM Query:

Process Creation where (Image contains 'code.exe' OR ParentImage contains 'code.exe') AND IntegrityLevel changed

🔗 References

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