{"history":[{"alert":0,"cve":"CVE-2021-1789","id":22007,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.13975, \"percentile\": 0.96601}"},{"alert":0,"cve":"CVE-2021-1789","id":19626,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.13975, \"percentile\": 0.9658}"},{"alert":0,"cve":"CVE-2021-1789","id":17592,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.13975, \"percentile\": 0.96576}"},{"alert":0,"cve":"CVE-2021-1789","id":15656,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.13975, \"percentile\": 0.96574}"},{"alert":0,"cve":"CVE-2021-1789","id":13634,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.13975, \"percentile\": 0.96572}"},{"alert":0,"cve":"CVE-2021-1789","id":11416,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.13975, \"percentile\": 0.96567}"},{"alert":1,"cve":"CVE-2021-1789","id":9298,"kind":"cna","observed_at":1793917201,"payload":"{\"containers\": {\"adp\": [{\"providerMetadata\": {\"dateUpdated\": \"2024-08-03T16:25:05.947Z\", \"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\"}, \"references\": [{\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212147\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212146\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212148\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212149\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://support.apple.com/en-us/HT212152\"}, {\"name\": \"FEDORA-2021-864dc37032\", \"tags\": [\"vendor-advisory\", \"x_refsource_FEDORA\", \"x_transferred\"], \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/\"}, {\"name\": \"FEDORA-2021-619711d709\", \"tags\": [\"vendor-advisory\", \"x_refsource_FEDORA\", \"x_transferred\"], \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/\"}, {\"name\": \"GLSA-202104-03\", \"tags\": [\"vendor-advisory\", \"x_refsource_GENTOO\", \"x_transferred\"], \"url\": \"https://security.gentoo.org/glsa/202104-03\"}], \"title\": \"CVE Program Container\"}, {\"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"REQUIRED\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"version\": \"3.1\"}}, {\"other\": {\"content\": {\"id\": \"CVE-2021-1789\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2025-01-29T17:34:43.911837Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2022-05-04\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789\"}, \"type\": \"kev\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-843\", \"description\": \"CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2025-10-21T23:25:50.136Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"government-resource\"], \"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2022-05-04T00:00:00.000Z\", \"value\": \"CVE-2021-1789 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"iOS and iPadOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"14.4\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"11.2\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"7.3\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"14.4\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}, {\"product\": \"macOS\", \"vendor\": \"Apple\", \"versions\": [{\"lessThan\": \"14.0\", \"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.\"}], \"problemTypes\": [{\"descriptions\": [{\"description\": \"Processing maliciously crafted web content may lead to arbitrary code execution\", \"lang\": \"en\", \"type\": \"text\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2021-05-01T01:06:28.000Z\", \"orgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"shortName\": \"apple\"}, \"references\": [{\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212147\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212146\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212148\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212149\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://support.apple.com/en-us/HT212152\"}, {\"name\": \"FEDORA-2021-864dc37032\", \"tags\": [\"vendor-advisory\", \"x_refsource_FEDORA\"], \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/\"}, {\"name\": \"FEDORA-2021-619711d709\", \"tags\": [\"vendor-advisory\", \"x_refsource_FEDORA\"], \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/\"}, {\"name\": \"GLSA-202104-03\", \"tags\": [\"vendor-advisory\", \"x_refsource_GENTOO\"], \"url\": \"https://security.gentoo.org/glsa/202104-03\"}], \"x_legacyV4Record\": {\"CVE_data_meta\": {\"ASSIGNER\": \"product-security@apple.com\", \"ID\": \"CVE-2021-1789\", \"STATE\": \"PUBLIC\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"product_name\": \"iOS and iPadOS\", \"version\": {\"version_data\": [{\"version_affected\": \"<\", \"version_value\": \"14.4\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"<\", \"version_value\": \"11.2\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"<\", \"version_value\": \"7.3\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"<\", \"version_value\": \"14.4\"}]}}, {\"product_name\": \"macOS\", \"version\": {\"version_data\": [{\"version_affected\": \"<\", \"version_value\": \"14.0\"}]}}]}, \"vendor_name\": \"Apple\"}]}}, \"data_format\": \"MITRE\", \"data_type\": \"CVE\", \"data_version\": \"4.0\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"Processing maliciously crafted web content may lead to arbitrary code execution\"}]}]}, \"references\": {\"reference_data\": [{\"name\": \"https://support.apple.com/en-us/HT212147\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212147\"}, {\"name\": \"https://support.apple.com/en-us/HT212146\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212146\"}, {\"name\": \"https://support.apple.com/en-us/HT212148\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212148\"}, {\"name\": \"https://support.apple.com/en-us/HT212149\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212149\"}, {\"name\": \"https://support.apple.com/en-us/HT212152\", \"refsource\": \"MISC\", \"url\": \"https://support.apple.com/en-us/HT212152\"}, {\"name\": \"FEDORA-2021-864dc37032\", \"refsource\": \"FEDORA\", \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/\"}, {\"name\": \"FEDORA-2021-619711d709\", \"refsource\": \"FEDORA\", \"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/\"}, {\"name\": \"GLSA-202104-03\", \"refsource\": \"GENTOO\", \"url\": \"https://security.gentoo.org/glsa/202104-03\"}]}}}}, \"cveMetadata\": {\"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"assignerShortName\": \"apple\", \"cveId\": \"CVE-2021-1789\", \"datePublished\": \"2021-04-02T18:01:18.000Z\", \"dateReserved\": \"2020-12-08T00:00:00.000Z\", \"dateUpdated\": \"2025-10-21T23:25:50.136Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.1\"}"},{"alert":0,"cve":"CVE-2021-1789","id":9162,"kind":"epss","observed_at":1793895600,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.13975, \"percentile\": 0.96564}"},{"alert":0,"cve":"CVE-2021-1789","id":6950,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.13975, \"percentile\": 0.96562}"},{"alert":0,"cve":"CVE-2021-1789","id":4727,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.13975, \"percentile\": 0.96555}"},{"alert":0,"cve":"CVE-2021-1789","id":2509,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.13975, \"percentile\": 0.9655}"},{"alert":1,"cve":"CVE-2021-1789","id":1108,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2021-1789\", \"cwes\": [\"CWE-843\"], \"dateAdded\": \"2022-05-04\", \"dueDate\": \"2022-05-25\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Unknown\", \"notes\": \"https://nvd.nist.gov/vuln/detail/CVE-2021-1789\", \"product\": \"Multiple Products\", \"requiredAction\": \"Apply updates per vendor instructions.\", \"shortDescription\": \"A type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.\", \"vendorProject\": \"Apple\", \"vulnerabilityName\": \"Apple Multiple Products Type Confusion Vulnerability\"}"}],"record":{"affected":[{"product":"iOS and iPadOS","vendor":"Apple","versions":[{"lessThan":"14.4","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"11.2","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"7.3","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"14.4","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"14.0","status":"affected","version":"unspecified","versionType":"custom"}]}],"cna":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-03T16:25:05.947Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://support.apple.com/en-us/HT212147"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://support.apple.com/en-us/HT212146"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://support.apple.com/en-us/HT212148"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://support.apple.com/en-us/HT212149"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://support.apple.com/en-us/HT212152"},{"name":"FEDORA-2021-864dc37032","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/"},{"name":"FEDORA-2021-619711d709","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/"},{"name":"GLSA-202104-03","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"],"url":"https://security.gentoo.org/glsa/202104-03"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2021-1789","options":[{"Exploitation":"active"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-01-29T17:34:43.911837Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2022-05-04","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789"},"type":"kev"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-843","description":"CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-10-21T23:25:50.136Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789"}],"timeline":[{"lang":"en","time":"2022-05-04T00:00:00.000Z","value":"CVE-2021-1789 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"iOS and iPadOS","vendor":"Apple","versions":[{"lessThan":"14.4","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"11.2","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"7.3","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"14.4","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"macOS","vendor":"Apple","versions":[{"lessThan":"14.0","status":"affected","version":"unspecified","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution."}],"problemTypes":[{"descriptions":[{"description":"Processing maliciously crafted web content may lead to arbitrary code execution","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2021-05-01T01:06:28.000Z","orgId":"286789f9-fbc2-4510-9f9a-43facdede74c","shortName":"apple"},"references":[{"tags":["x_refsource_MISC"],"url":"https://support.apple.com/en-us/HT212147"},{"tags":["x_refsource_MISC"],"url":"https://support.apple.com/en-us/HT212146"},{"tags":["x_refsource_MISC"],"url":"https://support.apple.com/en-us/HT212148"},{"tags":["x_refsource_MISC"],"url":"https://support.apple.com/en-us/HT212149"},{"tags":["x_refsource_MISC"],"url":"https://support.apple.com/en-us/HT212152"},{"name":"FEDORA-2021-864dc37032","tags":["vendor-advisory","x_refsource_FEDORA"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/"},{"name":"FEDORA-2021-619711d709","tags":["vendor-advisory","x_refsource_FEDORA"],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/"},{"name":"GLSA-202104-03","tags":["vendor-advisory","x_refsource_GENTOO"],"url":"https://security.gentoo.org/glsa/202104-03"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"product-security@apple.com","ID":"CVE-2021-1789","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"iOS and iPadOS","version":{"version_data":[{"version_affected":"<","version_value":"14.4"}]}},{"product_name":"macOS","version":{"version_data":[{"version_affected":"<","version_value":"11.2"}]}},{"product_name":"macOS","version":{"version_data":[{"version_affected":"<","version_value":"7.3"}]}},{"product_name":"macOS","version":{"version_data":[{"version_affected":"<","version_value":"14.4"}]}},{"product_name":"macOS","version":{"version_data":[{"version_affected":"<","version_value":"14.0"}]}}]},"vendor_name":"Apple"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Processing maliciously crafted web content may lead to arbitrary code execution"}]}]},"references":{"reference_data":[{"name":"https://support.apple.com/en-us/HT212147","refsource":"MISC","url":"https://support.apple.com/en-us/HT212147"},{"name":"https://support.apple.com/en-us/HT212146","refsource":"MISC","url":"https://support.apple.com/en-us/HT212146"},{"name":"https://support.apple.com/en-us/HT212148","refsource":"MISC","url":"https://support.apple.com/en-us/HT212148"},{"name":"https://support.apple.com/en-us/HT212149","refsource":"MISC","url":"https://support.apple.com/en-us/HT212149"},{"name":"https://support.apple.com/en-us/HT212152","refsource":"MISC","url":"https://support.apple.com/en-us/HT212152"},{"name":"FEDORA-2021-864dc37032","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/"},{"name":"FEDORA-2021-619711d709","refsource":"FEDORA","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/"},{"name":"GLSA-202104-03","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/202104-03"}]}}}},"cveMetadata":{"assignerOrgId":"286789f9-fbc2-4510-9f9a-43facdede74c","assignerShortName":"apple","cveId":"CVE-2021-1789","datePublished":"2021-04-02T18:01:18.000Z","dateReserved":"2020-12-08T00:00:00.000Z","dateUpdated":"2025-10-21T23:25:50.136Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"cna_checked":1794370801,"cve":"CVE-2021-1789","description":"A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.","epss":{"date":"2026-11-12","epss":0.13975,"percentile":0.96601},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2021-1789","cwes":["CWE-843"],"dateAdded":"2022-05-04","dueDate":"2022-05-25","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-1789","product":"Multiple Products","requiredAction":"Apply updates per vendor instructions.","shortDescription":"A type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.","vendorProject":"Apple","vulnerabilityName":"Apple Multiple Products Type Confusion Vulnerability"},"kev_checked":1794522003,"products":"Apple iOS and iPadOS, Apple macOS","references":["https://support.apple.com/en-us/HT212147","https://support.apple.com/en-us/HT212146","https://support.apple.com/en-us/HT212148","https://support.apple.com/en-us/HT212149","https://support.apple.com/en-us/HT212152","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/","https://security.gentoo.org/glsa/202104-03","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789"],"score":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","provider":"CISA-ADP","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Apple Multiple Products Type Confusion Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[]}
