{"id":"CVE-2026-9805","state":"PUBLISHED","title":"FMTSWriteUseIntelLib: FMTS SMM IHISI Buffer Overflow","description":"SMM IHISI command handler, FMTSWriteUseIntelLib, for FMTS command 0x32, read and write data without checking buffer size and could cause buffer overflow.","publishedAt":"2026-08-26T01:00:25.855Z","updatedAt":"2026-08-26T15:29:45.529Z","severity":{"score":2.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L","source":"Insyde"},"assigner":"Insyde","products":["Insyde Software InsydeH2O"],"affected":[{"vendor":"Insyde Software","product":"InsydeH2O","defaultStatus":"unaffected","versions":[{"version":"See in the Solution","status":"affected"}],"platforms":["x86"],"modules":["FMTSWriteUseIntelLib"]}],"references":["https://www.insyde.com/security-pledge/sa-2026006/"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:13:52.441Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/9xxx/CVE-2026-9805.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9805","state":"PUBLISHED","datePublished":"2026-08-26T01:00:25.855Z","dateUpdated":"2026-08-26T15:29:45.529Z","assignerShortName":"Insyde","assignerOrgId":"8338d8cb-57f7-4252-abc0-96fd13e98d21","dateReserved":"2026-05-28T06:24:59.358Z"},"containers":{"cna":{"title":"FMTSWriteUseIntelLib: FMTS SMM IHISI Buffer Overflow","descriptions":[{"lang":"en","value":"SMM IHISI command handler, FMTSWriteUseIntelLib, for FMTS command 0x32, read and write data without checking buffer size and could cause buffer overflow."}],"affected":[{"vendor":"Insyde Software","product":"InsydeH2O","defaultStatus":"unaffected","versions":[{"version":"See in the Solution","status":"affected"}],"platforms":["x86"],"modules":["FMTSWriteUseIntelLib"]}],"references":[{"url":"https://www.insyde.com/security-pledge/sa-2026006/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"PHYSICAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","baseSeverity":"LOW","baseScore":2.7,"vectorString":"CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787 Out-of-bounds write","type":"CWE"}]}],"providerMetadata":{"shortName":"Insyde","orgId":"8338d8cb-57f7-4252-abc0-96fd13e98d21","dateUpdated":"2026-08-26T01:00:25.855Z"},"solutions":[{"lang":"en","value":"Intel Mobile platforms:\n\n\n\nWildCat Lake: Version 05.72.18.0010\n\nPanther Lake: Version 05.72.17.0032\n\nLunar Lake: Version 05.62.29.0038\n\nAarow Lake-H/U: Version 05.56.23.0022\n\nAarow Lake-S/HX: Version 05.56.23.0037\n\nRaptor Lake: Version Tag 05.47.24.0058 \n\nTwin Lake: Version Tag 05.44.45.0029\n\n\nIntel Server/Embedded platforms:\n\n\n\nMehlow/Mehlow-R(CFL-S): Trunk\n\nTatlow (RKS): Trunk\n\nWhiskeyLake: Trunk\n\nCometLake-S: Trunk\n\nTigerLake UP3/H: Trunk\n\nAlderLake: Trunk\n\nRaptor Lake: Trunk\n\nMeteor Lake-U/H: Trunk\n\nMeteor Lake-PS: Trunk\n\nArrow Lake-S: Trunk\n\nArrow Lake-U/H: Trunk\n\nElkhartLake: Trunk\n\nAlder Lake N: Trunk\n\nAmstonLake: Trunk\n\nTwinLake: Trunk","supportingMedia":[{"type":"text/html","base64":false,"value":"Intel Mobile platforms:\n<br>\n<br>WildCat Lake: Version 05.72.18.0010\n<br>Panther Lake: Version 05.72.17.0032\n<br>Lunar Lake: Version 05.62.29.0038\n<br>Aarow Lake-H/U: Version 05.56.23.0022\n<br>Aarow Lake-S/HX: Version 05.56.23.0037\n<br>Raptor Lake: Version Tag 05.47.24.0058 \n<br>Twin Lake: Version Tag 05.44.45.0029<div><br></div>Intel Server/Embedded platforms:\n<br>\n<br>Mehlow/Mehlow-R(CFL-S): Trunk\n<br>Tatlow (RKS): Trunk\n<br>WhiskeyLake: Trunk\n<br>CometLake-S: Trunk\n<br>TigerLake UP3/H: Trunk\n<br>AlderLake: Trunk\n<br>Raptor Lake: Trunk\n<br>Meteor Lake-U/H: Trunk\n<br>Meteor Lake-PS: Trunk\n<br>Arrow Lake-S: Trunk\n<br>Arrow Lake-U/H: Trunk\n<br>ElkhartLake: Trunk\n<br>Alder Lake N: Trunk\n<br>AmstonLake: Trunk\n<br>TwinLake: Trunk\n<br><div>&nbsp;<br></div>"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-26T15:29:23.290859Z","id":"CVE-2026-9805","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-26T15:29:45.529Z"}}]}}}