CVE-2021-1669
High
Published: 12 January 2021
Published
12 January 2021
Modified
07 July 2025
KEV Added
—
Patch
—
CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0722
91.8th percentile
Risk Priority
22
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-1669 is a high-severity an unspecified weakness vulnerability in Microsoft Windows 10. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-7136
Vulnerability details
Windows Remote Desktop Security Feature Bypass Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
remote desktop
all versions
microsoft
remote desktop client
all versions
microsoft
windows 10
1607, 1803, 1809, 1909, 2004
microsoft
windows server 2016
1909, 2004, 20h2, all versions
microsoft
windows server 2019
all versions
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.