# CVE-2026-121662: Visual Studio Code command injection vulnerability

Source: https://junglewise.ai/threats/cve-2026-121662-improper-neutralization-of-special-elements-used-in-a-command  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-121662 · Severity: high · CVSS 8.6 · Published 2026-11-10

Visual Studio Code is a widely used source code editor for developers. A command injection vulnerability allows an attacker with local access to execute arbitrary code on a developer's machine, potentially compromising source code, credentials, and development environments.

Technologies: [Microsoft Visual Studio Code](https://junglewise.ai/threats/technologies/visual-studio-code). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-121662 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-121662 being exploited in the wild.

**How severe is CVE-2026-121662?** High severity, with a CVSS score of 8.6, published 10 November 2026.

**Which products and versions are affected?** Microsoft Visual Studio Code.

**Is there a fix for CVE-2026-121662?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-121662 attacked?** It is attacked with local access, in a web application.

**Am I affected by CVE-2026-121662?** Check whether you run Microsoft Visual Studio Code. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an improper neutralization of special elements in command execution, allowing command injection. It requires local access to trigger, and successful exploitation grants arbitrary code execution with the privileges of the VS Code process.

## Affected products

- Microsoft Visual Studio Code

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-121662](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-121662)

## Related threats

- [Microsoft Visual Studio Code untrusted search path remote code execution](https://junglewise.ai/threats/cve-2026-70094-untrusted-search-path-in-visual-studio-code-allows-an)
- [Visual Studio Code trust boundary violation](https://junglewise.ai/threats/cve-2026-121665-trust-boundary-violation-in-visual-studio-code-allows-an)
- [Microsoft Visual Studio Code cross-site scripting](https://junglewise.ai/threats/cve-2026-121664-improper-neutralization-of-input-during-web-page-generation)
- [Microsoft Visual Studio Code incomplete input validation security bypass](https://junglewise.ai/threats/cve-2026-121663-incomplete-list-of-disallowed-inputs-in-visual-studio-code)
- [Microsoft Visual Studio Code security feature bypass](https://junglewise.ai/threats/cve-2026-121661-incomplete-list-of-disallowed-inputs-in-visual-studio-code)