7.2
CVSSv2

CVE-2021-31187

Published: 11/05/2021 Updated: 02/08/2023
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: 641
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 WalletService. By creating a directory junction, an attacker can abuse the service to create a file in an arbitrary location. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

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