A high-severity local privilege escalation vulnerability in Apple macOS allows malicious applications to gain root access, posing a significant risk to system integrity.

This is a local privilege escalation flaw where an application with low privileges can exploit restricted permissions to execute code with root-level authority. The vulnerability requires a local attacker to execute a malicious application on the target system.

Successful exploitation of this vulnerability results in a total compromise of the affected system, as the attacker attains root privileges. This allows for unauthorized data access, the installation of persistent malicious software, and complete control over system operations, which may lead to significant reputational and operational damage. The CVSS score of 7.8 reflects the high severity of this impact, despite the requirement for local access.

Immediate Action: Update macOS Sequoia to version 15.7.3 and macOS Tahoe to version 26.2 immediately to apply the necessary security restrictions.

Proactive Monitoring: Monitor system audit logs for unauthorized attempts to escalate privileges or unexpected execution of binaries from user-writable directories.

Compensating Controls: Implement strict application sandboxing and restrict the installation of unauthorized or untrusted software to minimize the risk of a local attacker triggering this flaw.

Public Exploit Available: Unknown

Given the potential for complete system takeover, administrators should prioritize patching all macOS endpoints across the enterprise. Failure to apply these updates leaves systems vulnerable to any malicious local process capable of bypassing existing restrictions to achieve root access.