Apple Patches Critical Font Bug in iOS and macOS
Apple has swiftly addressed a critical security flaw in its operating systems with the release of updates for iOS and macOS. The update patches a font processing bug, identified as CVE-2025-43400, which could potentially allow malicious actors to cause apps to crash or even execute arbitrary code.
The bug, discovered in Apple's font rendering engine, could trigger a denial-of-service condition or memory corruption when processing malicious fonts. This vulnerability, if exploited, could lead to significant disruption and potential security breaches.
Apple has issued updates for a wide range of devices and platforms to address this issue. Users of iPhone 11 and later models, iPad Pro 12.9-inch 3rd generation and later, and other recent iPad and iPad mini models should update to iOS 26. Similarly, macOS users should update to macOS 26 or the latest version of their respective older platforms.
Given the potential severity of the vulnerability, Apple urges all users to update their devices as soon as possible. The updates are available for immediate download. By installing these updates, users can protect their devices from this critical security flaw and ensure the continued smooth operation of their apps.
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