CVE-2026-64955

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Velociraptor", "repo": "https://github.com/Velocidex/velociraptor/", "vendor": "Rapid7", "versions": [{"lessThan": "0.77.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "cve@rapid7.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When Microsoft Excel imports a CSV file, it executes cells beginning with certain characters as formulas, giving such CSV files arbitrary execution.\u00a0\n\nVelociraptor fails to sanitize such cells when exporting to CSV from various places such as the GUI, offline collector or data exports.\n\nIt is not clear if the vulnerability is actually in Microsoft Excel treating a CSV data file as executable content, or if Velociraptor should be sanitizing the data to prevent Excel from executing it. However, since this is such a common use case for Velociraptor we decided to highlight it in an advisory."}, {"lang": "es", "value": "Cuyo Microsoft Excel importa un archivo CSV, ejecuta celdas que comienzan con ciertos caracteres como f\u00f3rmulas, lo que otorga a dichos archivos CSV ejecuci\u00f3n arbitraria.\n\nVelociraptor no logra sanear dichas celdas al exportar a CSV desde varios lugares, como la GUI, el recolector fuera de l\u00ednea o las exportaciones de datos.\n\nNo est\u00e1 claro si la vulnerabilidad est\u00e1 realmente en Microsoft Excel al tratar un archivo de datos CSV como contenido ejecutable, o si Velociraptor deber\u00eda sanear los datos para evitar que Excel los ejecute. Sin embargo, dado que este es un caso de uso tan com\u00fan para Velociraptor, decidimos destacarlo en un aviso."}], "id": "CVE-2026-64955", "lastModified": "2026-10-24T16:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 4.0, "source": "cve@rapid7.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64955", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-12T12:29:19.765452Z", "version": "2.0.3"}}]}, "published": "2026-08-12T10:17:20.310", "references": [{"source": "cve@rapid7.com", "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-64955/"}], "sourceIdentifier": "cve@rapid7.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1236"}], "source": "cve@rapid7.com", "type": "Secondary"}]}

{}

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