Main Vulnerability Database Vulnerabilities #VU12457

Buffer overflow in Windows Server and Windows - CVE-2018-8120

Published: May 8, 2018 / Updated: June 17, 2021

Vulnerability identifier: #VU12457

CSH Severity: High

CVSS v4.0: 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-2018-8120

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: Microsoft

Affected software:
Windows Server
Windows

Detailed vulnerability description

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

The vulnerability exists due to boundary error in win32k.sys driver. A local user can execute arbitrary code with SYSTEM privileges.

Note: this vulnerability is being actively exploited in limited targeted attacks.

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