CVE-2025-24266: 
macOS vulnerability analysis and mitigation

A buffer overflow vulnerability (CVE-2025-24266) was discovered in the Xsan component of macOS. This vulnerability affects multiple versions of macOS including Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5. The issue was disclosed and patched on March 31, 2025 (Apple Support, NVD).

The vulnerability is a buffer overflow issue in the Xsan component that was addressed with improved bounds checking. The vulnerability has been assigned a CVSS v3.1 base score of 9.8 CRITICAL with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified as CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (NVD).

When exploited, this vulnerability allows a malicious application to cause unexpected system termination. The high CVSS score indicates that the vulnerability could potentially lead to significant system compromise (Apple Support, Rapid7).

The vulnerability requires local access to exploit, as it needs a malicious application to be running on the affected system. There are currently no reports of this vulnerability being actively exploited in the wild (NVD).

Apple has released security updates to address this vulnerability in macOS Ventura 13.7.5, macOS Sequoia 15.4, and macOS Sonoma 14.7.5. Users are advised to update their systems to these versions to protect against potential exploitation (Apple Support).