Main Vulnerability Database Vulnerabilities #VU53104

Security features bypass in Microsoft Windows and Windows Server - CVE-2021-31205

Published: May 11, 2021

Vulnerability identifier: #VU53104

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-31205

CWE-ID: CWE-254

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to security feature bypass issue in Windows SMB Client. A remote attacker can gain access to sensitive information on the system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2021-31205

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31205

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