CVE-2025-33242

{"id": "CVE-2025-33242", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-33242", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-24T20:51:29.084680Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@nvidia.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 0.7}]}, "affected": [{"source": "psirt@nvidia.com", "affectedData": [{"vendor": "NVIDIA", "product": "HGX and DGX B300", "versions": [{"status": "affected", "version": "All versions prior to and including 1.0"}], "platforms": ["CX8 MCU"], "defaultStatus": "unaffected"}]}], "published": "2026-03-24T21:16:24.253", "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-33242", "source": "psirt@nvidia.com"}, {"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5768", "source": "psirt@nvidia.com"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2025-33242", "source": "psirt@nvidia.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@nvidia.com", "description": [{"lang": "en", "value": "CWE-1234"}]}], "descriptions": [{"lang": "en", "value": "NVIDIA B300 MCU contains a vulnerability in the CX8 MCU that could allow a malicious actor to modify unsupported registries, causing a bad state. A successful exploit of this vulnerability might lead to denial of service and data tampering."}, {"lang": "es", "value": "La MCU NVIDIA B300 contiene una vulnerabilidad en la MCU CX8 que podr\u00eda permitir a un actor malicioso modificar registros no soportados, causando un estado defectuoso. Un exploit exitoso de esta vulnerabilidad podr\u00eda conducir a la denegaci\u00f3n de servicio y a la manipulaci\u00f3n de datos."}], "lastModified": "2026-06-17T09:13:17.787", "sourceIdentifier": "psirt@nvidia.com"}