{"id":"CVE-2019-7240","aliases":["EUVD-2019-16784","GHSA-qr76-rqwf-r4c5"],"status":"published","title":"An issue was discovered in WinRing0x64.sys in Moo0 System Monitor 1.83. The vulnerable driver...","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.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02394,"percentile":0.84119,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-665"],"published":"2020-03-25T16:54:28Z","modified":"2026-06-17T02:40:18Z","products":[{"vendor":"moo0","product":"system_monitor"}],"references":[{"url":"https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2019-0004/FEYE-2019-0004.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-7240"},{"url":"https://github.com/advisories/GHSA-qr76-rqwf-r4c5"}],"sources":{"cve":[{"id":"CVE-2019-7240","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.","status":"published","published":"2020-03-25T16:54:28Z","modified":"2024-08-04T20:46:45.919Z","updated_at":"2026-11-02T14:32:22.432545Z"}],"euvd":[{"id":"EUVD-2019-16784","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.","status":"published","published":"2020-03-25T16:54:28Z","modified":"2024-08-04T20:46:45Z","updated_at":"2026-11-03T03:06:46.489173Z"}],"ghsa":[{"id":"GHSA-qr76-rqwf-r4c5","title":"An issue was discovered in WinRing0x64.sys in Moo0 System Monitor 1.83. The vulnerable driver...","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.","status":"published","published":"2022-05-24T17:12:37Z","modified":"2023-01-29T05:01:52Z","updated_at":"2026-11-02T14:44:56.341286Z"}],"nvd":[{"id":"CVE-2019-7240","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.","status":"published","published":"2020-03-25T17:15:14.11Z","modified":"2026-06-17T02:40:18.52Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-665"],"updated_at":"2026-11-02T14:05:46.451008Z"}]}}