CVE-2025-43364

7.8

Apple · macOS

A race condition in Apple macOS allows a malicious application to escape its sandbox environment, potentially leading to unauthorized system access.

Executive summary

This race condition vulnerability in Apple macOS allows local applications to bypass sandbox restrictions, posing a significant risk of unauthorized system-level operations.

Vulnerability

This is a race condition vulnerability occurring within the macOS sandbox mechanism. An unprivileged application can exploit this flaw to break out of its restricted sandbox environment.

Business impact

The ability for an application to escape its sandbox allows it to bypass security boundaries, potentially leading to unauthorized data access, system modification, or privilege escalation. With a CVSS score of 7.8, this high-severity flaw represents a substantial risk to organizational endpoints, as compromised applications could gain persistent control over the host system.

Remediation

Immediate Action: Update all affected macOS installations to the versions specified in the vendor security advisory (Sequoia 15.7, Sonoma 14.8, or Tahoe 26.1).

Proactive Monitoring: Monitor system logs for unexpected application behavior or unauthorized attempts to access protected system directories or files.

Compensating Controls: Maintain strict endpoint management policies that restrict the installation of untrusted or unauthorized third-party applications to reduce the likelihood of malicious code execution.

Exploitation status

Public Exploit Available: No (exploit_available: false)

Analyst recommendation

Given the potential for complete sandbox bypass, this vulnerability poses a serious threat to the integrity of macOS workstations. Administrators should prioritize deploying the provided Apple security updates across the enterprise fleet immediately to ensure that sandbox protections are correctly enforced and to minimize the risk of unauthorized system access.

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Sources