{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6484", "assignerOrgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "state": "PUBLISHED", "assignerShortName": "Insyde", "dateReserved": "2026-04-17T06:07:36.576Z", "datePublished": "2026-08-12T00:20:36.095Z", "dateUpdated": "2026-08-12T00:20:36.095Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "shortName": "Insyde", "dateUpdated": "2026-08-12T00:20:36.095Z"}, "title": "Lack of verified boot to certain FV may cause arbitrary code execution", "datePublic": "2026-08-12T00:04:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-1277", "description": "CWE-1277: Insufficient Verification of Data Authenticity in Firmware", "type": "CWE"}]}], "affected": [{"vendor": "Insyde Software", "product": "InsydeH2O", "platforms": ["x86"], "versions": [{"status": "unknown", "version": "See in the Solution"}], "defaultStatus": "unknown"}], "descriptions": [{"lang": "en", "value": "In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution."}]}], "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"}}], "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\u00a0\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 \u2013 U/H ARL-H/U: Version 05.56.07.0022\nMeteor Lake \u2013 PS ARL-H/U: Version 05.56.07.0022\nArrow Lake \u2013 S ARL-S/HX: Version 05.55.45.0036\nArrow Lake \u2013 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 \u2013 U/H ARL-H/U: Version 05.56.07.0022<br>Meteor Lake \u2013 PS ARL-H/U: Version 05.56.07.0022<br>Arrow Lake \u2013 S ARL-S/HX: Version 05.55.45.0036<br>Arrow Lake \u2013 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"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "platforms": ["x86"], "product": "InsydeH2O", "vendor": "Insyde Software", "versions": [{"status": "unknown", "version": "See in the Solution"}]}], "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution."}], "id": "CVE-2026-6484", "lastModified": "2026-08-12T01:17:08.060", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 6.0, "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "type": "Secondary"}]}, "published": "2026-08-12T01:17:08.060", "references": [{"source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "url": "https://www.insyde.com/security-pledge/sa-2026003/"}], "sourceIdentifier": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1277"}], "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "type": "Secondary"}]}

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