VULNERABILITY INTELLIGENCE

CVE-2019-7240

CVSS score7.2 HIGH
EPSS probability2.39%
CISA KEVNot currently listed
Published2020-03-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in WinRing0x64.sys in Moo0 System Monitor 1.83. The vulnerable driver exposes a wrmsr instruction via IOCTL 0x9C402088 and does not properly filter the Model Specific Register (MSR). Allowing arbitrary MSR writes can lead to Ring-0 code execution and escalation of privileges.

Weakness classification

  • CWE-665: Improper Initialization

Primary references