CVE-2021-43217: Windows Encrypting File System (EFS) Remote Code Execution Vulnerability
First published: Wed Dec 15 2021(Updated: )
Windows Encrypting File System (EFS) Remote Code Execution Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 11 | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | =20h2 | |
| Microsoft Windows Server | =2022 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Server 2012 x64 | ||
| Microsoft Windows Server 2012 x64 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What is the severity of CVE-2021-43217?
CVE-2021-43217 has a CVSS score that indicates a critical vulnerability severity level due to its potential for remote code execution.
How do I fix CVE-2021-43217?
To fix CVE-2021-43217, users should apply the latest security updates provided by Microsoft for the affected Windows versions.
Which versions of Windows are affected by CVE-2021-43217?
CVE-2021-43217 affects multiple versions of Windows including Windows 7, 8.1, 10, 11, and various editions of Windows Server.
What type of vulnerability is CVE-2021-43217?
CVE-2021-43217 is classified as a Remote Code Execution vulnerability involving Windows Encrypting File System (EFS).
Can CVE-2021-43217 be exploited remotely?
Yes, CVE-2021-43217 can be exploited remotely, allowing an attacker to execute arbitrary code on the affected system.
- agent/type
- agent/first-publish-date
- agent/references
- agent/title
- agent/severity
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/author
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/microsoft
- canonical/microsoft windows 10
- version/microsoft windows 10/20h2
- version/microsoft windows 10/21h1
- version/microsoft windows 10/1607
- version/microsoft windows 10/1809
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 11
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows 8.1
- canonical/microsoft windows rt
- canonical/microsoft windows server
- version/microsoft windows server/20h2
- version/microsoft windows server/2022
- canonical/microsoft windows server 2008 itanium
- version/microsoft windows server 2008 itanium/sp2
- version/microsoft windows server 2008 itanium/r2-sp1
- canonical/microsoft windows server 2012 x64
- version/microsoft windows server 2012 x64/r2
- canonical/microsoft windows server 2016
- version/microsoft windows server 2016/2004
- canonical/microsoft windows server 2019