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Vulnerability4 · 1 read

CVE-2021-43893

CVSS 3.1: 7.5 high
EPSS: 7%p93
Published: Dec 15, 2021 · Dec 15, 2021
Modified: Jun 17, 2026

Analyze CVE-2021-43893 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

Description · NVD

Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability

Vendors: microsoft

Products: windows 10, windows 11, windows 7, windows 8.1, windows rt 8.1, windows server, windows server 2008, windows server 2012, windows server 2016, windows server 2019

Weakness: CWE-668

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (6.6%)

In the news

3 stories

Microsoft December 2021 Patch Tuesday fixes an actively exploited zero

Security AffairsDec 15, 15:08 UTC · Dec 15, 2021VulnerabilityExploitedCVE-2021-43890 CVE-2021-43240 CVE-2021-41333+541 · 1 read

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Log4j Looms Large Over Patch Tuesday

Infosecurity MagazineDec 15, 09:00 UTC · Dec 15, 2021VulnerabilityExploitedCVE-2021-43890 CVE-2021-43893 CVE-2021-43883+42 · 1 read

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Microsoft Issues Windows Update to Patch 0

The Hacker NewsDec 15, 00:00 UTC · Dec 15, 2021VulnerabilityExploitedCVE-2021-43890 CVE-2021-43240 CVE-2021-43883+102 · 1 read

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