{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61776", "assignerOrgId": "9576f279-3576-44b5-a4af-b9a8644b2de6", "state": "PUBLISHED", "assignerShortName": "nvidia", "dateReserved": "2026-07-10T19:12:31.026Z", "datePublished": "2026-09-01T16:02:54.047Z", "dateUpdated": "2026-09-01T16:28:52.412Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9576f279-3576-44b5-a4af-b9a8644b2de6", "shortName": "nvidia", "dateUpdated": "2026-09-01T16:02:54.047Z"}, "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data", "lang": "en", "type": "CWE"}]}], "affected": [{"defaultStatus": "unaffected", "product": "Megatron Bridge", "platforms": ["All platforms"], "vendor": "NVIDIA", "versions": [{"status": "affected", "version": "0.0 to 0.5.0"}]}], "descriptions": [{"lang": "en", "value": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.", "supportingMedia": [{"base64": false, "type": "text/html", "value": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure."}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "code execution, data tampering, information disclosure"}]}], "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61776"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-61776"}, {"url": "https://github.com/NVIDIA/product-security/tree/main/2026/5868"}], "metrics": [{"cvssV3_1": {"attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "NVIDIA PSIRT"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-61776", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-01T16:18:21.416451Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T16:28:52.412Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-61776", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-01T16:18:21.416451Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T16:20:43.464Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "impacts": [{"descriptions": [{"lang": "en", "value": "code execution, data tampering, information disclosure"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "NVIDIA", "product": "Megatron Bridge", "versions": [{"status": "affected", "version": "0.0 to 0.5.0"}], "platforms": ["All platforms"], "defaultStatus": "unaffected"}], "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61776"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-61776"}, {"url": "https://github.com/NVIDIA/product-security/tree/main/2026/5868"}], "x_generator": {"engine": "NVIDIA PSIRT"}, "descriptions": [{"lang": "en", "value": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.", "supportingMedia": [{"type": "text/html", "value": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "9576f279-3576-44b5-a4af-b9a8644b2de6", "shortName": "nvidia", "dateUpdated": "2026-09-01T16:02:54.047Z"}}}, "cveMetadata": {"cveId": "CVE-2026-61776", "state": "PUBLISHED", "dateUpdated": "2026-09-01T16:28:52.412Z", "dateReserved": "2026-07-10T19:12:31.026Z", "assignerOrgId": "9576f279-3576-44b5-a4af-b9a8644b2de6", "datePublished": "2026-09-01T16:02:54.047Z", "assignerShortName": "nvidia"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["All platforms"], "product": "Megatron Bridge", "vendor": "NVIDIA", "versions": [{"status": "affected", "version": "0.0 to 0.5.0"}]}], "source": "psirt@nvidia.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure."}], "id": "CVE-2026-61776", "lastModified": "2026-09-01T21:03:04.987", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "psirt@nvidia.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-61776", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-01T16:18:21.416451Z", "version": "2.0.3"}}]}, "published": "2026-09-01T16:17:12.587", "references": [{"source": "psirt@nvidia.com", "url": "https://github.com/NVIDIA/product-security/tree/main/2026/5868"}, {"source": "psirt@nvidia.com", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61776"}, {"source": "psirt@nvidia.com", "url": "https://www.cve.org/CVERecord?id=CVE-2026-61776"}], "sourceIdentifier": "psirt@nvidia.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "psirt@nvidia.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["all_platforms"], "status": "affected", "versions": {"scheme": "generic", "value": "[0.0,0.5.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Megatron Bridge", "source": "cna", "vendor": "NVIDIA"}, "product": "megatron-bridge", "vendor": "nvidia"}], "created": "2026-09-02T01:00:06.633270+00:00", "title": "Deserialization Vulnerability Enables Remote Code Execution in NVIDIA Megatron Bridge", "updated": "2026-09-02T01:45:05.631980+00:00", "vendors": ["nvidia", "nvidia$PRODUCT$megatron-bridge"]}