Unrated severityCISA KEVNVD Advisory· Published Apr 2, 2021· Updated Oct 21, 2025
CVE-2021-1789
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.
Affected products
2- Range: unspecified
- Apple/iOS and iPadOSv5Range: unspecified
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/mitrevendor-advisoryx_refsource_FEDORA
- security.gentoo.org/glsa/202104-03mitrevendor-advisoryx_refsource_GENTOO
- support.apple.com/en-us/HT212146mitrex_refsource_MISC
- support.apple.com/en-us/HT212147mitrex_refsource_MISC
- support.apple.com/en-us/HT212148mitrex_refsource_MISC
- support.apple.com/en-us/HT212149mitrex_refsource_MISC
- support.apple.com/en-us/HT212152mitrex_refsource_MISC
News mentions
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