About the security content of Safari 14.1.2

This document describes the security content of Safari 14.1.2.

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Safari 14.1.2*

Released September 13, 2021


Available for: macOS Catalina and macOS Mojave

Impact: 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.

Description: A use after free issue was addressed with improved memory management.

CVE-2021-30858: an anonymous researcher

* After installing this update, the build number for Safari 14.1.2 is 14611. on macOS Mojave and 15611. on macOS Catalina.

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