Apple Inc. recently released an emergency security update addressing a high-risk vulnerability identified as CVE-2025-43300. This vulnerability exists in the ImageIO image processing framework of Apple's systems and could pose a serious threat to iPhone and Mac users.

Security experts explain that the danger of this vulnerability lies in the fact that an attacker only needs to send a specially crafted image file, which could potentially invade the device without the user's knowledge. When the device attempts to open such a malicious image, the hidden malicious code exploits a vulnerability in the system's image processing, triggering a memory overflow and subsequently executing unauthorized instructions on the user's device.

Once an attack is successful, hackers may gain access to users' private data, including but not limited to photos, contact information, communication records, and even login passwords for various accounts. More seriously, attackers may remotely control the compromised devices, turning them into tools for further attacks. Any application that involves image processing, such as various social media and cloud storage services, could potentially become a target of attacks.

Currently, the known affected system versions include iOS 18.6.1 and below, as well as macOS Son and earlier versions. Apple strongly recommends that all users update their device operating systems as soon as possible to mitigate this security threat.

The discovery of this security vulnerability serves as a reminder of the importance of timely updating device systems and software in the digital age. At the same time, users should remain vigilant and avoid opening files from unknown sources, especially image files. In today's world where cybersecurity is increasingly important, maintaining good digital hygiene habits is crucial for protecting personal information.