Vulnerability identifier: #VU51314

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-26887

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the Microsoft Windows Folder Redirection, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 2004, 7, 8.1 - 8.1 RT

Windows Server: 2008 - 2019 2004

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CPE

• cpe:2.3:o:microsoft:windows:10:2004:*:*:*:*:*:*

External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26887

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?