CVE-2019-7240

CVE-2019-7240 describes a privilege escalation vulnerability in WinRing0x64.sys, a driver used by Moo0 System Monitor 1.83. The driver exposes a wrmsr instruction via IOCTL 0x9C402088 without properly filtering Model Specific Register (MSR) writes. This flaw allows an attacker to achieve Ring-0 code execution, leading to complete system compromise and escalation of privileges. Rated with a CVSS score of 7.2 (HIGH), this vulnerability has a network attack vector and low attack complexity, allowing a high-privileged attacker to impact confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.