CVE-2025-43272
Apple Safari vulnerability analysis and mitigation

Overview

CVE-2025-43272 is a security vulnerability affecting WebKit, discovered and reported by Big Bear. The vulnerability was disclosed on September 15, 2025, affecting multiple Apple operating systems including iOS 26, iPadOS 26, macOS Tahoe 26, watchOS 26, visionOS 26, and Safari 26 (Apple Support).

Technical details

The vulnerability is related to memory handling issues in WebKit, Apple's browser engine. When processing maliciously crafted web content, the vulnerability could lead to an unexpected Safari crash. The issue was tracked in WebKit Bugzilla under ID 294550 and was addressed by Apple through improved memory handling mechanisms (NVD).

Impact

The primary impact of this vulnerability is that processing maliciously crafted web content may lead to an unexpected Safari crash, potentially affecting user experience and system stability (Apple Support).

Mitigation and workarounds

Apple has addressed this vulnerability by implementing improved memory handling in WebKit. The fix is available in Safari 26, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26, and iPadOS 26. Users are advised to update their devices to these versions to mitigate the vulnerability (Apple Support).

Additional resources


SourceThis report was generated using AI

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