{"affected":[{"affectedData":[{"product":"Microsoft Office","vendor":"Microsoft","versions":[{"status":"affected","version":"2019 for 32-bit editions"},{"status":"affected","version":"2019 for 64-bit editions"}]},{"product":"Office 365 ProPlus","vendor":"Microsoft","versions":[{"status":"affected","version":"32-bit Systems"},{"status":"affected","version":"64-bit Systems"}]}],"source":"secure@microsoft.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*","matchCriteriaId":"FF177984-A906-43FA-BF60-298133FBBD6B","vulnerable":true},{"criteria":"cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:*","matchCriteriaId":"CA035812-F35A-43F1-9A8D-EE02201AA10A","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A security feature bypass vulnerability exists in the way that Office Click-to-Run (C2R) components handle a specially crafted file, which could lead to a standard user, any AppContainer sandbox, and Office LPAC Protected View to escalate privileges to SYSTEM.To exploit this bug, an attacker would have to run a specially crafted file, aka 'Microsoft Office ClickToRun Security Feature Bypass Vulnerability'."},{"lang":"es","value":"Se presenta una vulnerabilidad de omisión de la característica de seguridad en la manera en que los componentes Click-to-Run (C2R) de Office manejan un archivo especialmente diseñado, lo que podría conllevar a un usuario estándar, de cualquier sandbox de AppContainer y Office LPAC Protected View, escale privilegios a SYSTEM. Para aprovechar este error, un atacante tendría que ejecutar un archivo especialmente diseñado, también se conoce como \"Microsoft Office ClickToRun Security Feature Bypass Vulnerability\"."}],"id":"CVE-2019-1449","lastModified":"2026-06-17T02:28:38.110","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"HIGH","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"COMPLETE","baseScore":10.0,"confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C","version":"2.0"},"exploitabilityScore":10.0,"impactScore":10.0,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2019-11-12T19:15:16.020","references":[{"source":"secure@microsoft.com","tags":["Patch","Vendor Advisory"],"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449"}],"sourceIdentifier":"secure@microsoft.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"NVD-CWE-noinfo"}],"source":"nvd@nist.gov","type":"Primary"}]}