CVE-2026-6727

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6727", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-04-20T21:18:19.891Z", "datePublished": "2026-08-11T15:22:18.547Z", "dateUpdated": "2026-08-12T18:41:28.456Z"}, "containers": {"cna": {"title": "CVE-2026-6727", "descriptions": [{"lang": "en", "value": "A timing side-channel vulnerability exists in the RSA OAEP decryption implementation. A privileged local attacker with access to the TPM command interface may be able to exploit timing differences to recover information that could allow decryption of ciphertexts encrypted to TPM-managed RSA keys, including the RSA Endorsement Key (EK), including import blobs, credential blobs, and session salts. Under certain conditions, this may also enable the forgery of TPM 2.0 attestations. Refer to TCGVRT0011."}], "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-208 Observable Timing Discrepancy"}]}], "references": [{"url": "https://trustedcomputinggroup.org/about/security/"}, {"url": "https://trustedcomputinggroup.org/wp-content/uploads/VRT0011-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-2026-6727"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-11T15:25:58.448Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-208", "lang": "en", "description": "CWE-208 Observable Timing Discrepancy"}]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-12T18:41:21.277166Z", "id": "CVE-2026-6727", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T18:41:28.456Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-6727", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-12T18:41:21.277166Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-208", "description": "CWE-208 Observable Timing Discrepancy"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T18:41:15.556Z"}}], "cna": {"title": "CVE-2026-6727", "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/about/security/"}, {"url": "https://trustedcomputinggroup.org/wp-content/uploads/VRT0011-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-2026-6727"}, "descriptions": [{"lang": "en", "value": "A timing side-channel vulnerability exists in the RSA OAEP decryption implementation. A privileged local attacker with access to the TPM command interface may be able to exploit timing differences to recover information that could allow decryption of ciphertexts encrypted to TPM-managed RSA keys, including the RSA Endorsement Key (EK), including import blobs, credential blobs, and session salts. Under certain conditions, this may also enable the forgery of TPM 2.0 attestations. Refer to TCGVRT0011."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-208 Observable Timing Discrepancy"}]}], "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-11T15:25:58.448Z"}}}, "cveMetadata": {"cveId": "CVE-2026-6727", "state": "PUBLISHED", "dateUpdated": "2026-08-12T18:41:28.456Z", "dateReserved": "2026-04-20T21:18:19.891Z", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "datePublished": "2026-08-11T15:22:18.547Z", "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": "A timing side-channel vulnerability exists in the RSA OAEP decryption implementation. A privileged local attacker with access to the TPM command interface may be able to exploit timing differences to recover information that could allow decryption of ciphertexts encrypted to TPM-managed RSA keys, including the RSA Endorsement Key (EK), including import blobs, credential blobs, and session salts. Under certain conditions, this may also enable the forgery of TPM 2.0 attestations. Refer to TCGVRT0011."}, {"lang": "es", "value": "Existe una vulnerabilidad de canal lateral de tiempo en la implementaci\u00f3n de descifrado RSA OAEP. Un atacante local privilegiado con acceso a la interfaz de comandos del TPM podr\u00eda ser capaz de explotar diferencias de tiempo para recuperar informaci\u00f3n que podr\u00eda permitir el descifrado de cifrados cifrados con claves RSA gestionadas por el TPM, incluyendo la clave de respaldo RSA (EK), incluyendo blobs de importaci\u00f3n, blobs de credenciales y sales de sesi\u00f3n. Bajo ciertas condiciones, esto tambi\u00e9n podr\u00eda permitir la falsificaci\u00f3n de atestaciones de TPM 2.0. Consulte TCGVRT0011."}], "id": "CVE-2026-6727", "lastModified": "2026-10-24T16:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 4.0, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-6727", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-12T18:41:21.277166Z", "version": "2.0.3"}}]}, "published": "2026-08-11T16:17:34.503", "references": [{"source": "cret@cert.org", "url": "https://trustedcomputinggroup.org/about/security/"}, {"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/VRT0011-Advisory_Final-1.pdf"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-208"}], "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": "2026-08-11T23:00:07.878455+00:00", "title": "Timing Side\u2011Channel Vulnerability in TPM 2.0 RSA OAEP Decryption Enabling Key Recovery and Attestation Forgery", "updated": "2026-08-13T09:54:19.417946+00:00", "vendors": ["trustedcomputinggroup", "trustedcomputinggroup$PRODUCT$tpm2.0"]}