CVE-2019-7240

HIGH

moo0 System Monitor 1.83 - Privilege Escalation via Unfiltered MSR Write in WinRing0x64.sys

Title source: llm
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 7.2
EPSS 0.0239
EPSS Percentile 81.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-665
Status published
Products (1)
moo0/system_monitor 1.83
Published Mar 25, 2020
Tracked Since Feb 18, 2026