CVE-2025-43206: 
macOS vulnerability analysis and mitigation

CVE-2025-43206 is a security vulnerability discovered in Apple's macOS operating systems that involves a parsing issue in the handling of directory paths. The vulnerability was disclosed on July 29, 2025, affecting multiple versions of macOS including Sequoia, Ventura, and Sonoma. The issue was identified by security researcher Zhongquan Li (@Guluisacat) and has been addressed in macOS Sequoia 15.6, macOS Ventura 13.7.7, and macOS Sonoma 14.7.7 (Apple Support).

The vulnerability stems from a parsing issue in the handling of directory paths within the System Settings component of macOS. The security flaw was addressed by implementing improved path validation mechanisms. The vulnerability has been assigned a CVSS 3.1 Base Score of 4.0 (MEDIUM) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating local access is required with low attack complexity and no privileges needed (NVD).

When exploited, this vulnerability could allow a malicious application to access protected user data. The impact is limited to unauthorized access to sensitive information, with no reported ability to modify data or execute code (Apple Support, NVD).

Apple has released security updates to address this vulnerability in macOS Sequoia 15.6, macOS Ventura 13.7.7, and macOS Sonoma 14.7.7. Users are advised to update their systems to these versions to mitigate the risk (Apple Support).