CVE-2025-43277: 
macOS vulnerability analysis and mitigation

CVE-2025-43277 is a memory corruption vulnerability discovered in Apple's CoreAudio component that affects multiple Apple operating systems. The vulnerability was disclosed on July 29, 2025, and was identified by Google's Threat Analysis Group. The affected systems include iOS 18.6, iPadOS 18.6, watchOS 11.6, macOS Sequoia 15.6, tvOS 18.6, and visionOS 2.6 (Apple iOS, Apple macOS).

The vulnerability exists in the CoreAudio component and occurs when processing maliciously crafted audio files, which can lead to memory corruption. The issue was addressed with improved memory handling in the affected systems. The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating local access is required but no privileges are needed (NVD).

When exploited, this vulnerability could allow an attacker to cause memory corruption through a maliciously crafted audio file. The high CVSS score indicates potential impacts on confidentiality, integrity, and availability of the affected systems (Apple macOS).

Apple has addressed this vulnerability by implementing improved memory handling in the following system updates: iOS 18.6, iPadOS 18.6, watchOS 11.6, macOS Sequoia 15.6, tvOS 18.6, and visionOS 2.6. Users are advised to update their devices to these latest versions to mitigate the risk (Apple iOS, Apple macOS).