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Vulnerability DatabaseCVE-2025-43443

CVE-2025-43443: 
Apple Safari vulnerability analysis and mitigation

Overview

CVE-2025-43443 is a security vulnerability affecting WebKit, discovered in late 2025. The vulnerability impacts multiple Apple operating systems including iOS, iPadOS, macOS, and watchOS. It was reported by an anonymous researcher and tracked in WebKit Bugzilla under ID 299843 (Apple Support).

Technical details

The vulnerability is characterized as a process crash issue in WebKit when processing maliciously crafted web content. The root cause was identified as improper checks in the processing logic. Apple addressed this vulnerability by implementing improved checks in the affected components (Apple Support).

Impact

When exploited, this vulnerability could lead to an unexpected process crash when processing maliciously crafted web content. This affects users of Apple devices running Safari or other WebKit-based browsers (Apple Support).

Mitigation and workarounds

Apple has released security updates addressing this vulnerability across multiple platforms: iOS 18.7.2, iPadOS 18.7.2, macOS Tahoe 26.1, Safari 26.1, and watchOS 26.1. Users are advised to update their devices to the latest available versions to receive the security fixes (Apple Support).

Additional resources

Source: This report was generated using AI

Related Apple Safari vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-28857MEDIUM6.5
  • Apple SafariApple Safari
  • wpewebkit
NoYesMar 25, 2026
CVE-2026-28871MEDIUM4.3
  • Apple SafariApple Safari
  • webkitgtk3-devel
NoYesMar 25, 2026
CVE-2026-28861MEDIUM4.3
  • Apple SafariApple Safari
  • wpewebkit
NoYesMar 25, 2026
CVE-2026-28859MEDIUM4.3
  • Apple SafariApple Safari
  • webkitgtk4-jsc
NoYesMar 25, 2026
CVE-2026-20691MEDIUM4.3
  • Apple SafariApple Safari
  • webkitgtk-doc
NoYesMar 25, 2026

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