What is CVE-2019-7240?

CVE-2019-7240 is a high-severity vulnerability in Moo0 System Monitor, classified under Improper Initialization. CVSS score: 7.2/10. Published 2020-03-25.

How severe is CVE-2019-7240?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Moo0 System Monitor

CVE-2019-7240

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.

Vulnerability class: Dirty Pipe (CVE-2022-0847)

Published 2020-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Moo0 System Monitor — versions 1.83

Weakness classification (CWE)

CWE-665 — Improper Initialization

References

github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2019-0004/FEYE-20… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-7240?: CVE-2019-7240 is a high-severity vulnerability in Moo0 System Monitor, classified under Improper Initialization. CVSS score: 7.2/10. Published 2020-03-25.
How severe is CVE-2019-7240?: High severity. CVSS v3 base score is 7.2 out of 10.