TI-2019-05134 Aliases CVE-2019-7240 GHSA-qr76-rqwf-r4c5

An issue was discovered in WinRing0x64.sys in Moo0 System Monitor 1.83.

LOW 36CWE-665Published 2020-03-25 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.02394 84th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:moo0:system_monitor:1.83:::::::*	1.83	Vulnerable	Moo0

cpe:2.3:a:moo0:system_monitor:1.83:*:*:*:*:*:*:* Versions 1.83 Vulnerable ·Moo0

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-7240
2026-10-03 Alias added: GHSA-qr76-rqwf-r4c5

References

Exploit 1

https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2019-0004/FEYE-2019-0004.md

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences