CVE-2026-6726

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6726", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-04-20T21:17:45.860Z", "datePublished": "2026-08-11T15:24:44.880Z", "dateUpdated": "2026-08-12T19:18:15.598Z"}, "containers": {"cna": {"title": "An information leakage vulnerability in the TCG TPM 2.0 reference code.", "descriptions": [{"lang": "en", "value": "An information leakage vulnerability was reported in the TCG TPM 2.0 reference code that could allow a local attacker with elevated privileges to obtain a credential from a TPM-aware CA for a falsified TPM key (such as an Attestation Key, DevID Key or TLS authentication key) and falsify other TPM 2.0 attestations with this key. See also TCG VRT0010."}], "source": {"discovery": "INTERNAL"}, "affected": [{"vendor": "Trusted Computing Group", "product": "TPM2.0", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "v184", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-704 Incorrect Type Conversion or Cast"}]}], "references": [{"url": "https://trustedcomputinggroup.org/resource/errata-for-tpm-library-specification-2-0/"}, {"url": "https://trustedcomputinggroup.org/wp-content/uploads/VRT0010-Advisory_Final-1.pdf"}, {"url": "https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdf"}], "x_generator": {"engine": "VINCE 3.0.43", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-6726"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-11T15:27:05.701Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-704", "lang": "en", "description": "CWE-704 Incorrect Type Conversion or Cast"}]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.9, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-12T19:15:49.989531Z", "id": "CVE-2026-6726", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T19:18:15.598Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.9, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-6726", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-12T19:15:49.989531Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-704", "description": "CWE-704 Incorrect Type Conversion or Cast"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T19:16:36.949Z"}}], "cna": {"title": "An information leakage vulnerability in the TCG TPM 2.0 reference code.", "source": {"discovery": "INTERNAL"}, "affected": [{"vendor": "Trusted Computing Group", "product": "TPM2.0", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "v184"}]}], "references": [{"url": "https://trustedcomputinggroup.org/resource/errata-for-tpm-library-specification-2-0/"}, {"url": "https://trustedcomputinggroup.org/wp-content/uploads/VRT0010-Advisory_Final-1.pdf"}, {"url": "https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdf"}], "x_generator": {"env": "prod", "engine": "VINCE 3.0.43", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-6726"}, "descriptions": [{"lang": "en", "value": "An information leakage vulnerability was reported in the TCG TPM 2.0 reference code that could allow a local attacker with elevated privileges to obtain a credential from a TPM-aware CA for a falsified TPM key (such as an Attestation Key, DevID Key or TLS authentication key) and falsify other TPM 2.0 attestations with this key. See also TCG VRT0010."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-704 Incorrect Type Conversion or Cast"}]}], "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-11T15:27:05.701Z"}}}, "cveMetadata": {"cveId": "CVE-2026-6726", "state": "PUBLISHED", "dateUpdated": "2026-08-12T19:18:15.598Z", "dateReserved": "2026-04-20T21:17:45.860Z", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "datePublished": "2026-08-11T15:24:44.880Z", "assignerShortName": "certcc"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "TPM2.0", "vendor": "Trusted Computing Group", "versions": [{"lessThanOrEqual": "v184", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An information leakage vulnerability was reported in the TCG TPM 2.0 reference code that could allow a local attacker with elevated privileges to obtain a credential from a TPM-aware CA for a falsified TPM key (such as an Attestation Key, DevID Key or TLS authentication key) and falsify other TPM 2.0 attestations with this key. See also TCG VRT0010."}, {"lang": "es", "value": "Una vulnerabilidad de fuga de informaci\u00f3n fue reportada en el c\u00f3digo de referencia TCG TPM 2.0 que podr\u00eda permitir a un atacante local con privilegios elevados obtener una credencial de una CA consciente de TPM para una clave TPM falsificada (como una clave de atestaci\u00f3n, clave DevID o clave de autenticaci\u00f3n TLS) y falsificar otras atestaciones de TPM 2.0 con esta clave. V\u00e9ase tambi\u00e9n TCG VRT0010."}], "id": "CVE-2026-6726", "lastModified": "2026-10-24T16:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 7.9, "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:N", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 5.8, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-6726", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-12T19:15:49.989531Z", "version": "2.0.3"}}]}, "published": "2026-08-11T16:17:34.397", "references": [{"source": "cret@cert.org", "url": "https://trustedcomputinggroup.org/resource/errata-for-tpm-library-specification-2-0/"}, {"source": "cret@cert.org", "url": "https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdf"}, {"source": "cret@cert.org", "url": "https://trustedcomputinggroup.org/wp-content/uploads/VRT0010-Advisory_Final-1.pdf"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-704"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,v184]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "TPM2.0", "source": "cna", "vendor": "Trusted Computing Group"}, "product": "tpm2.0", "vendor": "trustedcomputinggroup"}], "created": "2026-08-11T23:00:07.878317+00:00", "updated": "2026-08-13T09:54:17.969334+00:00", "vendors": ["trustedcomputinggroup", "trustedcomputinggroup$PRODUCT$tpm2.0"]}