CVE-2025-43338

Vulnerability

Overview

CVE-2025-43338 is an out-of-bounds access issue in Apple's media file processing. The root cause is insufficient bounds checking when handling crafted media files, allowing an attacker to read or write beyond allocated memory boundaries [2].

Exploitation

An attacker can exploit this vulnerability by delivering a maliciously crafted media file to the target user. No special privileges are required; the user only needs to open the file in an affected application. The attack vector is local or remote via file sharing, email, or web downloads.

Impact

Successful exploitation can cause unexpected app termination or corrupt process memory. While the description does not confirm code execution, memory corruption often leads to arbitrary code execution in the context of the affected process, potentially compromising system integrity.

Mitigation

Apple has addressed the issue in iOS 26 and iPadOS 26 [2], as well as macOS Sonoma 14.8.2, macOS Sonoma 14.8.4, and macOS Tahoe 26, as noted in the CVE description. Users are advised to update to the latest available versions to mitigate the risk.