{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-27T01:30:43.360","vulnerabilities":[{"cve":{"id":"CVE-2019-3977","sourceIdentifier":"vulnreport@tenable.com","published":"2019-10-29T19:15:20.407","lastModified":"2024-11-21T04:42:59.513","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below insufficiently validate where upgrade packages are download from when using the autoupgrade feature. Therefore, a remote attacker can trick the router into \"upgrading\" to an older version of RouterOS and possibly reseting all the system's usernames and passwords."},{"lang":"es","value":"RouterOS versión 6.45.6 Stable, RouterOS versión 6.44.5 Long-Term y anteriores, comprueban insuficientemente desde dónde se descargan los paquetes de actualización cuando se usa la funcionalidad autoupgrade. Por lo tanto, un atacante remoto puede engañar al router para un \"upgrading\" a una versión anterior de RouterOS y posiblemente restablezca todos los nombres de usuario y contraseñas del sistema."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:C/A:P","baseScore":8.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"COMPLETE","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":7.8,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"vulnreport@tenable.com","type":"Secondary","description":[{"lang":"en","value":"CWE-494"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-494"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:*","versionEndIncluding":"6.44.5","matchCriteriaId":"E96DA8A8-65E0-4D1C-A15B-8A4F7A0644A1"},{"vulnerable":true,"criteria":"cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:*","versionEndIncluding":"6.45.6","matchCriteriaId":"AA750EF2-6247-46CF-B800-C0417F6D35A5"}]}]}],"references":[{"url":"https://www.tenable.com/security/research/tra-2019-46","source":"vulnreport@tenable.com","tags":["Third Party Advisory"]},{"url":"https://www.tenable.com/security/research/tra-2019-46","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}