Urgent: Update Your Apple Devices to Fix Critical Security Bug
Apple users worldwide are urged to update their devices immediately due to a critical security vulnerability. The German Federal Office for Information Security's Citizen's Certificate Authority warns of potential denial-of-service attacks, with incorrect memory serving as a stepping stone for further threats. The bug, registered as CVE-2025-43400, affects iPhones, iPads, and Apple computers.
The issue lies in the Font Parser, a component that can be tricked by manipulated fonts into writing to memory areas it shouldn't. This can lead to crashes or corrupted memory. Apple users should install the security update released on Monday evening, applicable to iOS, iPadOS, and macOS. The update was made available on Friday, September 29, 2025.
Opening a malicious application or document could allow attackers to exploit this vulnerability, potentially leading to device crashes or damage to process memory. This could then enable other, unspecified attacks.
To protect against crashes and potential memory damage, Apple users are advised to install the security update as soon as possible. The update addresses the critical vulnerability in the Font Parser, ensuring the safety and stability of affected devices.
