CVE-2021-34535
High
Published: 12 August 2021
Published
12 August 2021
Modified
07 July 2025
KEV Added
—
Patch
—
CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0922
92.9th percentile
Risk Priority
23
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-34535 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 7.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-21188
Vulnerability details
Remote Desktop Client Remote Code Execution Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
remote desktop client
all versions
microsoft
windows 10
1607, 1809, 1909, 2004, 20h2
microsoft
windows 7
all versions
microsoft
windows 8.1
all versions
microsoft
windows rt 8.1
all versions
microsoft
windows server 2008
r2
microsoft
windows server 2012
all versions, r2
microsoft
windows server 2016
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.