Buffer overflow in Windows and Windows Server - CVE-2021-31979

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Main Vulnerability Database Vulnerabilities #VU54723

Buffer overflow in Windows and Windows Server - CVE-2021-31979

Published: July 13, 2021


Vulnerability identifier: #VU54723
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2021-31979
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
Windows
Windows Server
Software vendor:
Microsoft

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Windows kernel. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code on the system with elevated privileges.

Note, the vulnerability is being actively exploited in the wild.

Remediation

Install updates from vendor's website.

External links