{"id":"CVE-2026-6484","state":"PUBLISHED","title":"Lack of verified boot to certain FV may cause arbitrary code execution","description":"In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.","publishedAt":"2026-08-12T00:20:36.095Z","updatedAt":"2026-08-12T12:39:26.057Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","source":"Insyde"},"assigner":"Insyde","products":["Insyde Software InsydeH2O"],"affected":[{"vendor":"Insyde Software","product":"InsydeH2O","defaultStatus":"unknown","versions":[{"version":"See in the Solution","status":"unknown"}],"platforms":["x86"]}],"references":["https://www.insyde.com/security-pledge/sa-2026003/"],"weaknesses":["CWE-1277"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/6xxx/CVE-2026-6484.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6484","state":"PUBLISHED","datePublished":"2026-08-12T00:20:36.095Z","dateUpdated":"2026-08-12T12:39:26.057Z","assignerShortName":"Insyde","assignerOrgId":"8338d8cb-57f7-4252-abc0-96fd13e98d21","dateReserved":"2026-04-17T06:07:36.576Z"},"containers":{"cna":{"title":"Lack of verified boot to certain FV may cause arbitrary code execution","descriptions":[{"lang":"en","value":"In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution."}],"affected":[{"vendor":"Insyde Software","product":"InsydeH2O","defaultStatus":"unknown","versions":[{"version":"See in the Solution","status":"unknown"}],"platforms":["x86"]}],"references":[{"url":"https://www.insyde.com/security-pledge/sa-2026003/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1277","lang":"en","description":"CWE-1277: Insufficient Verification of Data Authenticity in Firmware","type":"CWE"}]}],"providerMetadata":{"shortName":"Insyde","orgId":"8338d8cb-57f7-4252-abc0-96fd13e98d21","dateUpdated":"2026-08-12T00:20:36.095Z"},"datePublic":"2026-08-12T00:04:00.000Z","solutions":[{"lang":"en","value":"Intel Mobile Platforms:\nPanther Lake: Unaffected\nLunar Lake: Unaffected\nAarow Lake H/U: Version 05.56.17.0022\nAarow Lake S/HX: Version 05.56.17.0037\nRapter Lake: Version 05.47.24.0058\nTwin Lake: Version 05.44.45.0029\n\n\n\n \n\n\n\nIntel Server/Embedded platforms:\nWhitley (CLX/CPX/ICX): Trunk\nCedarIsland (CPX): Trunk\nEagle Stream: Unaffected\nBirch Stream: Unaffected\nMehlow/Mehlow-R(CFL-S): Unaffected\nTatlow (RKS): Unaffected\nJacobsville(SNR): Trunk\nIdaville: Trunk\nKaseyville: Unaffected\nWhiskey Lake: Trunk\nCome tLake-S: Unaffected\nTiger Lake UP3/H: Unaffected\nAlder Lake: Version 05.47.24.2057\nRaptor Lake: Version 05.47.24.0057\nMeteor Lake – U/H ARL-H/U: Version 05.56.07.0022\nMeteor Lake – PS ARL-H/U: Version 05.56.07.0022\nArrow Lake – S ARL-S/HX: Version 05.55.45.0036\nArrow Lake – U/H ARL-H/U: Version 05.56.07.0022\nElkhart Lake: Version 05.48.17.0030\nAlder Lake N: Trunk\nAmston Lake: Trunk\nTwin Lake: Trunk","supportingMedia":[{"type":"text/html","base64":false,"value":"<p><strong>Intel Mobile Platforms:</strong><br>Panther Lake: Unaffected<br>Lunar Lake: Unaffected<br>Aarow Lake H/U: Version 05.56.17.0022<br>Aarow Lake S/HX: Version 05.56.17.0037<br>Rapter Lake: Version 05.47.24.0058<br>Twin Lake: Version 05.44.45.0029</p><p>&nbsp;</p><p><strong>Intel Server/Embedded platforms:<br></strong>Whitley (CLX/CPX/ICX): Trunk<br>CedarIsland (CPX): Trunk<br>Eagle Stream: Unaffected<br>Birch Stream: Unaffected<br>Mehlow/Mehlow-R(CFL-S): Unaffected<br>Tatlow (RKS): Unaffected<br>Jacobsville(SNR): Trunk<br>Idaville: Trunk<br>Kaseyville: Unaffected<br>Whiskey Lake: Trunk<br>Come tLake-S: Unaffected<br>Tiger Lake UP3/H: Unaffected<br>Alder Lake: Version 05.47.24.2057<br>Raptor Lake: Version 05.47.24.0057<br>Meteor Lake – U/H ARL-H/U: Version 05.56.07.0022<br>Meteor Lake – PS ARL-H/U: Version 05.56.07.0022<br>Arrow Lake – S ARL-S/HX: Version 05.55.45.0036<br>Arrow Lake – U/H ARL-H/U: Version 05.56.07.0022<br>Elkhart Lake: Version 05.48.17.0030<br>Alder Lake N: Trunk<br>Amston Lake: Trunk<br>Twin Lake: Trunk</p>"}]}],"credits":[{"lang":"en","value":"Thanks to Nikolaj Schlej, independent firmware security researcher, for reporting the vulnerability and engaging in this coordinated disclosure.","type":"reporter"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-12T12:39:19.055017Z","id":"CVE-2026-6484","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-12T12:39:26.057Z"}}]}}}