{"id":"CVE-2023-31364","aliases":["EUVD-2023-35675","GHSA-xxv2-rmf4-wfx2"],"status":"published","title":"Improper handling of direct memory writes in the input-output memory management unit could allow...","description":"Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.","severity":{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00262,"percentile":0.18107,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2026-02-26T20:33:28Z","modified":"2026-06-17T05:56:51Z","products":[{"vendor":"amd","product":"amd athlon™ 3000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd epyc™ 7001 series processors"},{"vendor":"amd","product":"amd epyc™ 7002 series processors"},{"vendor":"amd","product":"amd epyc™ 7003 series processors"},{"vendor":"amd","product":"amd epyc™ 8004 series processors"},{"vendor":"amd","product":"amd epyc™ 9004 series processors"},{"vendor":"amd","product":"amd epyc™ 9005 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 3000 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 7002 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 7003 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 8004 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 9004 series processor"},{"vendor":"amd","product":"amd epyc™ embedded 9005 series processors"},{"vendor":"amd","product":"amd ryzen™ 3000 series desktop processors"},{"vendor":"amd","product":"amd ryzen™ 3000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 4000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 5000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 6000 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7000 series desktop processors"},{"vendor":"amd","product":"amd ryzen™ 7020 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7040 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7045 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 8000 series desktop processors"},{"vendor":"amd","product":"amd ryzen™ embedded 5000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded 7000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded 8000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded r1000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded r2000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v1000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v2000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v3000 series processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 3000 wx-series processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 5000 wx-series processors"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-31364"},{"url":"https://github.com/advisories/GHSA-xxv2-rmf4-wfx2"}],"sources":{"cve":[{"id":"CVE-2023-31364","description":"Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.","status":"published","published":"2026-02-26T20:33:28.086Z","modified":"2026-02-27T19:06:16.269Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","level":"high","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:35:27.430605Z"}],"euvd":[{"id":"EUVD-2023-35675","description":"Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.","status":"published","published":"2026-02-26T20:33:28Z","modified":"2026-02-27T19:06:16Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","level":"high"}],"updated_at":"2026-11-02T19:48:13.609806Z"}],"ghsa":[{"id":"GHSA-xxv2-rmf4-wfx2","title":"Improper handling of direct memory writes in the input-output memory management unit could allow...","description":"Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.","status":"published","published":"2026-02-26T21:31:31Z","modified":"2026-02-26T21:31:39Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:06:24.001962Z"}],"nvd":[{"id":"CVE-2023-31364","description":"Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.","status":"published","published":"2026-02-26T21:28:47.037Z","modified":"2026-06-17T05:56:51.363Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:09:27.733183Z"}]}}