high CVSS 7.8

CVE-2025-49714·Python vulnerability

Trust boundary violation in Visual Studio Code - Python extension allows an unauthorized attacker to execute code locally.

Severity
high
Software
Python
Fixed in
2025.8.1
Published
2025-07-08

Affected versions

Until: 2025.8.1

Fixed in: 2025.8.1

How to fix this CVE

Update the Visual Studio Code Python extension to version 2025.8.1 or later to resolve a trust boundary violation that could allow local code execution. This vulnerability affects the Python extension's handling of untrusted input, enabling attackers with local system access to execute arbitrary code in the context of the VS Code process. Immediately apply this update to all systems running VS Code with the Python extension installed.

sudo dnf update python3

Defensia detects this vulnerability

How to check if you are affected

  1. Step 1: Check your VS Code Python extension version by running `code --version` and opening the Extensions panel (Ctrl+Shift+X), then search for 'Python' and verify the installed version number
  2. Step 2: Confirm the Python interpreter version with `python3 --version` to identify which Python runtime the extension is using
  3. Step 3: Review VS Code logs located at `~/.config/Code/logs/` (Linux) or `%APPDATA%\Code\logs\` (Windows) for entries containing 'untrusted', 'exec', or 'child_process' around suspicious timestamps
  4. Step 4: After updating, re-open VS Code and verify the Python extension version shows 2025.8.1 or later in the Extensions panel

FAQ

What is CVE-2025-49714?

A trust boundary violation in the Visual Studio Code Python extension that allows an attacker with local system access to bypass security controls and execute arbitrary code with the privileges of the VS Code process. The vulnerability stems from improper validation of input within the extension's execution flow.

Is CVE-2025-49714 being actively exploited?

No, according to CISA's Known Exploited Vulnerabilities catalog, there is no evidence of active exploitation in the wild at this time, and no public exploits have been disclosed.

What versions of Python are affected by CVE-2025-49714?

The vulnerability affects the Visual Studio Code Python extension from all versions up to and including 2025.8.0. The Python interpreter itself is not directly affected; the issue resides in the VS Code extension component.

How do I check if my server is vulnerable to CVE-2025-49714?

Open Visual Studio Code, press Ctrl+Shift+X to access Extensions, search for 'Python', and check if the installed version is earlier than 2025.8.1. Alternatively, run `code --extensions-dir ~/.vscode/extensions | grep -i python` to list installed extension versions.

Does Defensia detect CVE-2025-49714?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If the Python extension is installed on a monitored system, CVE-2025-49714 will appear in your dashboard with remediation steps.

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References

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