CVE-2021-26700
Visual Studio Code npm-script Extension Remote Code Execution Vulnerability
- Published
- Feb 25, 2021
- Updated
- Aug 3, 2024
- Assigning CNA
- microsoft
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 93.1%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Visual Studio Code npm-script Extension Remote Code Execution Vulnerability
Sources
2Proof-of-concept for CVE-2021-26700: remote code execution in the VSCode npm-script extension via malicious workspace settings.json, with detailed exploitation and remediation guidance.
- CVE-2021-26700Exploit
Educational RCE exploit for CVE-2021-26700 in VS Code npm extension, demonstrating DNS tunneling to a Caldera C2 server via malicious package.json execution.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.