Vulnerability in Microsoft Remote Desktop Client For Windows
CVE-2021-38666
Remote Desktop Client Remote Code Execution Vulnerability
EPSS: 0.319 (96.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C.
Affected products
- Microsoft Remote Desktop Client For Windows — versions N/A
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — versions 10.0.0
- Microsoft Windows 10 Version 1809 — versions 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 2004 — versions 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 10 Version 21h1 — versions 10.0.0
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows 7 — versions 6.1.0
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38666 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-38666?
- CVE-2021-38666 is a high-severity vulnerability in Microsoft Remote Desktop Client For Windows. CVSS score: 8.8/10. Published 2021-11-10.
- How severe is CVE-2021-38666?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-38666 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.