CVE-2025-43536

Overview

Advisory: Apple Security Advisory

Impact:

Description: Processing maliciously crafted web content may lead to an unexpected process crash

Researchers: Nan Wang (@eternalsakura13)

Attribute	Value
CVE	CVE-2025-43536
Bugzilla	301726
Component	JSC
Bug Class	UAF
Severity	medium
Commit	1025bd18c9c7bd3d…
Advisory	Apple Advisory

Root Cause Analysis

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

Files Changed

Source Files

• Source/JavaScriptCore/bytecode/CodeBlock.cpp