CVE-2025-43425

Overview

Advisory: Apple Security Advisory

Impact:

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

Researchers: an anonymous researcher

Attribute Value
CVE CVE-2025-43425
Bugzilla 298851
Component JSC
Bug Class LogicError
Severity medium
Commit fcd2a8fc20dda5aa…
Advisory Apple Advisory

Root Cause Analysis

The issue was addressed with improved memory handling.

Files Changed

Source Files

  • Source/JavaScriptCore/dfg/DFGCloneHelper.cpp
  • Source/JavaScriptCore/dfg/DFGCloneHelper.h

Test Files

  • JSTests/stress/loop-unrolling-multi-get-and-put-by-offset.js