CVE-2021-38666
HighPublished
Remote Desktop Client Remote Code Execution Vulnerability
- Published
- Nov 10, 2021
- Updated
- Aug 4, 2024
- Assigning CNA
- microsoft
- Evidence observed
- Aug 5, 2026
Primary CVSS
8.8/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H15.1%
Moderate · next 30 days
- Percentile
- 96.6%
- 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
Remote Desktop Client Remote Code Execution Vulnerability
Sources
1Proof-of-concept exploit for CVE-2021-38666, a Windows Remote Code Execution vulnerability. Demonstrates exploitation techniques for security testing and vulnerability validation.
Responsible use
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