{"id":"CVE-2021-27965","aliases":["EUVD-2021-14683","GHSA-rf7h-w3mq-vjqq"],"status":"published","title":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer...","description":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer overflow that allows privilege escalation via a crafted 0x80102040, 0x80102044, 0x80102050, or 0x80102054 IOCTL request.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.11836,"percentile":0.96146,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-120"],"published":"2021-03-05T01:53:46Z","modified":"2026-06-17T03:45:41Z","exploits":[{"source":"pocgithub","id":"Jeromeyoung/CVE-2021-27965","title":"Jeromeyoung/CVE-2021-27965","date":"2021-11-01","url":"https://github.com/Jeromeyoung/CVE-2021-27965"},{"source":"pocgithub","id":"fengjixuchui/CVE-2021-27965","title":"fengjixuchui/CVE-2021-27965","date":"2022-07-10","url":"https://github.com/fengjixuchui/CVE-2021-27965"},{"source":"pocgithub","id":"mathisvickie/CVE-2021-27965","title":"mathisvickie/CVE-2021-27965","date":"2021-06-03","url":"https://github.com/mathisvickie/CVE-2021-27965"}],"products":[{"vendor":"msi","product":"dragon_center"}],"references":[{"url":"https://github.com/kronl/cve/tree/master/MSI_Dragon_Center","tags":["x_refsource_MISC","x_transferred","Broken Link","Third Party Advisory"]},{"url":"https://www.microsoft.com/en-us/p/msi-dragon-center/9nh7n2bv1cqq?activetab=pivot:overviewtab","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27965"},{"url":"https://github.com/advisories/GHSA-rf7h-w3mq-vjqq"}],"sources":{"cve":[{"id":"CVE-2021-27965","description":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer overflow that allows privilege escalation via a crafted 0x80102040, 0x80102044, 0x80102050, or 0x80102054 IOCTL request.","status":"published","published":"2021-03-05T01:53:46Z","modified":"2024-08-03T21:33:17.259Z","updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-14683","description":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer overflow that allows privilege escalation via a crafted 0x80102040, 0x80102044, 0x80102050, or 0x80102054 IOCTL request.","status":"published","published":"2021-03-05T01:53:46Z","modified":"2024-08-03T21:33:17Z","updated_at":"2026-11-03T03:24:47.80549Z"}],"ghsa":[{"id":"GHSA-rf7h-w3mq-vjqq","title":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer...","description":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer overflow that allows privilege escalation via a crafted 0x80102040, 0x80102044, 0x80102050, or 0x80102054 IOCTL request.","status":"published","published":"2022-05-24T17:43:47Z","modified":"2023-01-29T05:05:34Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:45:49.842411Z"}],"nvd":[{"id":"CVE-2021-27965","description":"The MsIo64.sys driver before 1.1.19.1016 in MSI Dragon Center before 2.0.98.0 has a buffer overflow that allows privilege escalation via a crafted 0x80102040, 0x80102044, 0x80102050, or 0x80102054 IOCTL request.","status":"published","published":"2021-03-05T02:15:12.583Z","modified":"2026-06-17T03:45:41.05Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:50.399901Z"}]}}