CVE-2021-28447
MEDIUMWindows Early Launch Antimalware Driver - Privilege Escalation
Title source: llmDescription
Windows Early Launch Antimalware Driver Security Feature Bypass Vulnerability
References (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28447
Exploit, Third Party Advisory x_refsource_misc
https://bi-zone.medium.com/measured-boot-and-malware-signatures-exploring-two-vulnerabilities-found-in-the-windows-loader-5a4fcc3c4b66
Scores
CVSS v3
4.4
EPSS
0.0204
EPSS Percentile
79.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
Status
published
Products (17)
microsoft/windows_10
microsoft/windows_10
20h2
microsoft/windows_10
1607
microsoft/windows_10
1803
microsoft/windows_10
1809
microsoft/windows_10
1909
microsoft/windows_10
2004
microsoft/windows_7
microsoft/windows_8.1
microsoft/windows_rt_8.1
... and 7 more
Published
Apr 13, 2021
Tracked Since
Feb 18, 2026