Unrated severityCISA KEVNVD Advisory· Published Sep 8, 2021· Updated Oct 21, 2025
CVE-2021-30661
CVE-2021-30661
Description
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Affected products
5- Apple/iOS and iPadOSv5Range: unspecified
- Range: unspecified
- Range: unspecified
- Range: unspecified
- Range: unspecified
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- support.apple.com/en-us/HT212317mitrex_refsource_MISC
- support.apple.com/en-us/HT212318mitrex_refsource_MISC
- support.apple.com/en-us/HT212323mitrex_refsource_MISC
- support.apple.com/en-us/HT212324mitrex_refsource_MISC
- support.apple.com/en-us/HT212325mitrex_refsource_MISC
- support.apple.com/en-us/HT212341mitrex_refsource_MISC
News mentions
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