7.8
CVSSv3

CVE-2022-21838

Published: 11/01/2022 Updated: 21/12/2023
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 642
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

This vulnerability allows local malicious users to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the SilentCleanup scheduled task. By creating a symbolic link, an attacker can abuse the task to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

Vulnerability Trend

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microsoft windows server 2008 r2

microsoft windows server 2012 r2

microsoft windows 10 1607

microsoft windows 8.1 -

microsoft windows server 2016 -

microsoft windows 7 -

microsoft windows server 2012 -

microsoft windows 10 -

microsoft windows server 2019 -

microsoft windows 10 1809

microsoft windows 10 1909

microsoft windows 10 20h2

microsoft windows 10 21h1

microsoft windows 11 -

microsoft windows server 20h2

microsoft windows server 2022

microsoft windows 10 21h2