CVE-2025-30456: 
macOS vulnerability analysis and mitigation

A parsing issue in the handling of directory paths was discovered in Apple's operating systems, identified as CVE-2025-30456. The vulnerability was disclosed on March 31, 2025, affecting multiple Apple operating systems including macOS Ventura 13.7.5, iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, and macOS Sonoma 14.7.5. The vulnerability was discovered by security researcher Gergely Kalman (Apple Support).

The vulnerability exists in the DiskArbitration component of Apple's operating systems, where a parsing issue in the handling of directory paths could allow an application to gain root privileges. The issue was addressed with improved path validation. The vulnerability has received 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, as assessed by CISA-ADP. The vulnerability is classified under CWE-281 (Improper Preservation of Permissions) (NVD).

If exploited, this vulnerability allows a malicious application to gain root privileges on the affected system, potentially giving the attacker complete control over the device. This elevated access could lead to unauthorized access to protected system resources, modification of system files, and complete compromise of system security (Apple Support).

Apple has released security updates to address this vulnerability in multiple operating system versions: macOS Ventura 13.7.5, iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, and macOS Sonoma 14.7.5. Users are strongly advised to update their devices to these latest versions to protect against potential exploitation (Apple Support).