CVE-2025-43268: 
macOS vulnerability analysis and mitigation

CVE-2025-43268 is a critical security vulnerability discovered in Apple's macOS Sequoia operating system. The vulnerability, identified in the Kernel component, allows a malicious application to potentially gain root privileges through a permissions issue. This vulnerability was discovered by security researchers Gergely Kalman (@gergely_kalman) and Arsenii Kostromin (0x3c3e) and was patched in the macOS Sequoia 15.6 update released on July 29, 2025 (Apple Support).

The vulnerability is characterized as a permissions issue in the macOS Kernel component that was addressed with additional restrictions. The issue potentially allows elevation of privileges, enabling a malicious application to gain root-level access to the system. The vulnerability affects macOS Sequoia versions prior to 15.6 (CIS Advisory).

The primary impact of this vulnerability is the potential for unauthorized privilege escalation, where a malicious application could gain root privileges on the affected system. This level of access would allow an attacker to perform unauthorized actions with the highest system privileges, potentially leading to complete system compromise (Apple Support).

Apple has addressed this vulnerability in macOS Sequoia 15.6. Users are strongly advised to update their systems to this version or later to protect against potential exploitation. The fix implements additional restrictions to address the permissions issue in the Kernel component (Apple Support, ASEC Advisory).