CVE-2021-40455
Medium
Published: 13 October 2021
Published
13 October 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.0059
69.7th percentile
Risk Priority
11
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-40455 is a medium-severity an unspecified weakness vulnerability in Microsoft Windows 10. Its CVSS base score is 5.5 (Medium).
Operationally, ranked in the top 30.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-27632
Vulnerability details
Windows Installer Spoofing Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
windows 10
1607, 1809, 1909, 2004, 20h2
microsoft
windows 11
all versions
microsoft
windows 7
all versions
microsoft
windows 8.1
all versions
microsoft
windows rt 8.1
all versions
microsoft
windows server
20h2
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
microsoft
windows server 2016
2004, all versions
microsoft
windows server 2019
all versions
+1 more product configuration(s) — see NVD for full list
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.