{"schemaVersion":3,"id":"CVE-2023-31364","aliases":[],"status":"published","duplicateOf":null,"title":null,"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.","dates":{"published":"2026-02-26T20:33:28.086Z","modified":"2026-02-27T19:06:16.269Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.3,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","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","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.3,"severity":"high","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","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.3,"severity":"high","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","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0024,"percentile":0.14133,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":-0.007000000000000018,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00247},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0024,"percentile":0.14133}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00247,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0024,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0024,"percentile":0.14133}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/119.html"}],"affected":[{"vendor":"amd","product":"amd athlon™ 3000 series mobile processors with radeon™ graphics","name":"AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics","label":"amd athlon™ 3000 series mobile processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_athlonTM_3000_series_mobile_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd epyc™ embedded 8004 series processors","name":"AMD EPYC™ Embedded 8004 Series Processors","label":"amd epyc™ embedded 8004 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"EmbGenoaPI-SP5 1.0.0.B","noFixRecorded":false,"fixedIn":null}],"versionsText":"EmbGenoaPI-SP5 1.0.0.B","eol":null,"hubHref":"/vendor/amd/amd_epycTM_embedded_8004_series_processors"},{"vendor":"amd","product":"amd epyc™ embedded 9004 series processor","name":"AMD EPYC™ Embedded 9004 Series Processor","label":"amd epyc™ embedded 9004 series processor","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"EmbGenoaPI-SP5 1.0.0.B","noFixRecorded":false,"fixedIn":null}],"versionsText":"EmbGenoaPI-SP5 1.0.0.B","eol":null,"hubHref":"/vendor/amd/amd_epycTM_embedded_9004_series_processor"},{"vendor":"amd","product":"amd ryzen™ 3000 series desktop processors","name":"AMD Ryzen™ 3000 Series Desktop Processors","label":"amd ryzen™ 3000 series desktop processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_3000_series_desktop_processors"},{"vendor":"amd","product":"amd ryzen™ 3000 series mobile processors with radeon™ graphics","name":"AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics","label":"amd ryzen™ 3000 series mobile processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_3000_series_mobile_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 4000 series mobile processors with radeon™ graphics","name":"AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics","label":"amd ryzen™ 4000 series mobile processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_4000_series_mobile_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 5000 series mobile processors with radeon™ graphics","name":"AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics","label":"amd ryzen™ 5000 series mobile processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_5000_series_mobile_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 6000 series processors with radeon™ graphics","name":"AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics","label":"amd ryzen™ 6000 series processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_6000_series_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 7000 series desktop processors","name":"AMD Ryzen™ 7000 Series Desktop Processors","label":"amd ryzen™ 7000 series desktop processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_7000_series_desktop_processors"},{"vendor":"amd","product":"amd ryzen™ 7020 series processors with radeon™ graphics","name":"AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics","label":"amd ryzen™ 7020 series processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_7020_series_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 7040 series mobile processors with radeon™ graphics","name":"AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics","label":"amd ryzen™ 7040 series mobile processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_7040_series_mobile_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 7045 series mobile processors with radeon™ graphics","name":"AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics","label":"amd ryzen™ 7045 series mobile processors with radeon™ graphics","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_7045_series_mobile_processors_with_radeonTM_graphics"},{"vendor":"amd","product":"amd ryzen™ 8000 series desktop processors","name":"AMD Ryzen™ 8000 Series Desktop Processors","label":"amd ryzen™ 8000 series desktop processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_8000_series_desktop_processors"},{"vendor":"amd","product":"amd ryzen™ embedded 5000 series processors","name":"AMD Ryzen™ Embedded 5000 Series Processors","label":"amd ryzen™ embedded 5000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_5000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded 7000 series processors","name":"AMD Ryzen™ Embedded 7000 Series Processors","label":"amd ryzen™ embedded 7000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_7000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded 8000 series processors","name":"AMD Ryzen™ Embedded 8000 Series Processors","label":"amd ryzen™ embedded 8000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_8000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded r1000 series processors","name":"AMD Ryzen™ Embedded R1000 Series Processors","label":"amd ryzen™ embedded r1000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_r1000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded r2000 series processors","name":"AMD Ryzen™ Embedded R2000 Series Processors","label":"amd ryzen™ embedded r2000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_r2000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded v1000 series processors","name":"AMD Ryzen™ Embedded V1000 Series Processors","label":"amd ryzen™ embedded v1000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_v1000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded v2000 series processors","name":"AMD Ryzen™ Embedded V2000 Series Processors","label":"amd ryzen™ embedded v2000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_v2000_series_processors"},{"vendor":"amd","product":"amd ryzen™ embedded v3000 series processors","name":"AMD Ryzen™ Embedded V3000 Series Processors","label":"amd ryzen™ embedded v3000 series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_embedded_v3000_series_processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 3000 wx-series processors","name":"AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors","label":"amd ryzen™ threadripper™ pro 3000 wx-series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_threadripperTM_pro_3000_wx-series_processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 5000 wx-series processors","name":"AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors","label":"amd ryzen™ threadripper™ pro 5000 wx-series processors","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"No Fix Planned","noFixRecorded":false,"fixedIn":null}],"versionsText":"No Fix Planned","eol":null,"hubHref":"/vendor/amd/amd_ryzenTM_threadripperTM_pro_5000_wx-series_processors"}],"affectedCount":23,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html","label":"www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html","hostname":"www.amd.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-02-26T20:33:28.086Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-27T19:06:16.269Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":33,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T00:02:15.770Z","stale":false,"partial":false}}