{"affected":[{"affectedData":[{"product":"iOS and iPadOS","vendor":"Apple","versions":[{"lessThan":"14.5","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"tvOS","vendor":"Apple","versions":[{"lessThan":"14.5","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"watchOS","vendor":"Apple","versions":[{"lessThan":"7.4","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"11.3","status":"affected","version":"unspecified","versionType":"custom"}]}],"source":"product-security@apple.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*","matchCriteriaId":"3EAAE2C1-EF21-4567-99F1-335D1EF955D1","versionEndExcluding":"14.5","vulnerable":true},{"criteria":"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*","matchCriteriaId":"C1E12568-6F17-458F-8216-3D6DBC8F6DEE","versionEndExcluding":"14.5","vulnerable":true},{"criteria":"cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*","matchCriteriaId":"4E699CCC-31F5-458E-A59C-79B3AF143747","versionEndExcluding":"11.3","versionStartIncluding":"11.0","vulnerable":true},{"criteria":"cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*","matchCriteriaId":"D5B77841-F161-47AB-8043-3E0346E3AA25","versionEndExcluding":"14.5","vulnerable":true},{"criteria":"cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*","matchCriteriaId":"CFFFE00C-0AA6-4F60-ABF4-E68877BFD8F8","versionEndExcluding":"7.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A buffer overflow may result in arbitrary code execution. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A logic issue was addressed with improved state management."},{"lang":"es","value":"Un desbordamiento de búfer puede resultar en una ejecución de código arbitrario. Este problema se corrigió en macOS Big Sur versión 11.3, iOS versión 14.5 e iPadOS versión 14.5, watchOS versión 7.4, tvOS versión 14.5. Se abordó un problema lógico con una administración de estado mejorada"}],"id":"CVE-2021-1770","lastModified":"2026-06-17T03:32:31.610","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"HIGH","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":7.5,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":10.0,"impactScore":6.4,"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":"2021-09-08T15:15:09.283","references":[{"source":"product-security@apple.com","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212317"},{"source":"product-security@apple.com","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212323"},{"source":"product-security@apple.com","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212324"},{"source":"product-security@apple.com","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212325"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212317"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212323"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212324"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://support.apple.com/en-us/HT212325"}],"sourceIdentifier":"product-security@apple.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-119"}],"source":"nvd@nist.gov","type":"Primary"}]}