CVE-2021-30943

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{"affected": [{"affectedData": [{"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "8.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "15.2", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "watchOS", "vendor": "Apple", "versions": [{"lessThan": "12.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "CCE4E546-A0DD-4E9E-A6B9-C19B04D77466", "versionEndExcluding": "15.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "7FB904C1-43D1-4583-8729-5D1B1746A54C", "versionEndExcluding": "15.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "1508CC50-3BED-474C-8F47-EA17795A5CAA", "versionEndExcluding": "12.1", "versionStartIncluding": "12.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "matchCriteriaId": "7A7245FB-6FBE-4C09-80F5-18504CA623B3", "versionEndExcluding": "8.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue in the handling of group membership was resolved with improved logic. This issue is fixed in iOS 15.2 and iPadOS 15.2, watchOS 8.3, macOS Monterey 12.1. A malicious user may be able to leave a messages group but continue to receive messages in that group."}, {"lang": "es", "value": "Se ha resuelto un problema en la gesti\u00f3n de la pertenencia a grupos con una l\u00f3gica mejorada. Este problema se ha solucionado en iOS 15.2 y iPadOS 15.2, watchOS 8.3, macOS Monterey 12.1. Un usuario malintencionado podr\u00eda abandonar un grupo de mensajes pero seguir recibiendo mensajes en ese grupo"}], "id": "CVE-2021-30943", "lastModified": "2026-06-17T03:51:11.060", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-24T19:15:21.267", "references": [{"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212975"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212976"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/HT212978"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212975"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212976"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.apple.com/en-us/HT212978"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-613"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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