CVE-2026-12855

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12855", "assignerOrgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "state": "PUBLISHED", "assignerShortName": "Insyde", "dateReserved": "2026-06-22T05:49:02.853Z", "datePublished": "2026-09-09T03:59:11.348Z", "dateUpdated": "2026-10-01T15:08:22.356Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "shortName": "Insyde", "dateUpdated": "2026-09-09T03:59:11.348Z"}, "title": "H19WMIHandlerSmm: unvalidated memory boundary could result in arbitrary code execution.", "datePublic": "2026-09-09T03:56:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "affected": [{"vendor": "Insyde Software", "product": "InsydeH2O", "platforms": ["x86"], "versions": [{"status": "affected", "version": "See in the Solution"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects."}]}], "references": [{"url": "https://www.insyde.com/security-pledge/sa-2026009/"}], "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": "HP feature version\n\u2013 Platform 5.4: 05.47.2701.2631\n\u2013 Platform 5.5: 05.55.45.2630\n\u2013 Platform 5.6: 05.62.29.2630\n\u2013 Platform 5.7: 05.72.21.2630\n\u2013 Platform 6.0: 06.01.23.2630", "supportingMedia": [{"type": "text/html", "base64": false, "value": "HP feature version<br>\u2013 Platform 5.4: 05.47.2701.2631<br>\u2013 Platform 5.5: 05.55.45.2630<br>\u2013 Platform 5.6: 05.62.29.2630<br>\u2013 Platform 5.7: 05.72.21.2630<br>\u2013 Platform 6.0: 06.01.23.2630"}]}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-12855", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-09T15:54:34.074995Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-09T20:51:33.091Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://www.kb.cert.org/vuls/id/553437"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-10-01T15:08:22.356Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.kb.cert.org/vuls/id/553437"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-10-01T15:08:22.356Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-12855", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-09T15:54:34.074995Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-09T20:46:06.172Z"}}], "cna": {"title": "H19WMIHandlerSmm: unvalidated memory boundary could result in arbitrary code execution.", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Insyde Software", "product": "InsydeH2O", "versions": [{"status": "affected", "version": "See in the Solution"}], "platforms": ["x86"], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "HP feature version\n\u2013 Platform 5.4: 05.47.2701.2631\n\u2013 Platform 5.5: 05.55.45.2630\n\u2013 Platform 5.6: 05.62.29.2630\n\u2013 Platform 5.7: 05.72.21.2630\n\u2013 Platform 6.0: 06.01.23.2630", "supportingMedia": [{"type": "text/html", "value": "HP feature version<br>\u2013 Platform 5.4: 05.47.2701.2631<br>\u2013 Platform 5.5: 05.55.45.2630<br>\u2013 Platform 5.6: 05.62.29.2630<br>\u2013 Platform 5.7: 05.72.21.2630<br>\u2013 Platform 6.0: 06.01.23.2630", "base64": false}]}], "datePublic": "2026-09-09T03:56:00.000Z", "references": [{"url": "https://www.insyde.com/security-pledge/sa-2026009/"}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects.", "supportingMedia": [{"type": "text/html", "value": "Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20: Improper Input Validation"}]}], "providerMetadata": {"orgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "shortName": "Insyde", "dateUpdated": "2026-09-09T03:59:11.348Z"}}}, "cveMetadata": {"cveId": "CVE-2026-12855", "state": "PUBLISHED", "dateUpdated": "2026-10-01T15:08:22.356Z", "dateReserved": "2026-06-22T05:49:02.853Z", "assignerOrgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "datePublished": "2026-09-09T03:59:11.348Z", "assignerShortName": "Insyde"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["x86"], "product": "InsydeH2O", "vendor": "Insyde Software", "versions": [{"status": "affected", "version": "See in the Solution"}]}], "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Unvalidated memory boundary could result in arbitrary code execution. The vulnerability exists in the code developed specifically for HP projects."}], "id": "CVE-2026-12855", "lastModified": "2026-10-01T16:17:40.630", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-12855", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-09T15:54:34.074995Z", "version": "2.0.3"}}]}, "published": "2026-09-09T04:17:56.480", "references": [{"source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "url": "https://www.insyde.com/security-pledge/sa-2026009/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.kb.cert.org/vuls/id/553437"}], "sourceIdentifier": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["x86"], "status": "affected", "versions": {"scheme": "generic", "value": "See in the Solution"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "InsydeH2O", "source": "cna", "vendor": "Insyde Software"}, "product": "insydeh2o", "vendor": "insyde_software"}], "created": "2026-09-09T11:30:09.323951+00:00", "updated": "2026-09-10T14:00:10.405777+00:00", "vendors": ["insyde_software", "insyde_software$PRODUCT$insydeh2o"]}