CVE-2025-43298 is a vulnerability identified in Apple macOS that arises from a parsing issue in the handling of directory paths. Specifically, the flaw involves inadequate validation of directory paths, which can be manipulated by an application to gain unauthorized root privileges. This vulnerability falls under CWE-41, which relates to improper neutralization of special elements in a path, leading to potential path traversal or privilege escalation. The issue affects macOS versions prior to Sequoia 15.7, Sonoma 14.8, and Tahoe 26, where Apple has implemented improved path validation to remediate the flaw. The vulnerability requires the attacker to have local privileges (low attack vector) and does not require user interaction, making exploitation feasible by a malicious app already running on the system with limited privileges. The CVSS v3.1 score of 7.8 indicates a high severity, with high impact on confidentiality, integrity, and availability, low attack complexity, and no user interaction needed. Although no exploits have been observed in the wild yet, the ability to escalate privileges to root could allow attackers to fully compromise affected systems, install persistent malware, or bypass security controls. This vulnerability is particularly critical in environments where macOS devices are used for sensitive operations or contain valuable data. The fix involves enhanced path validation logic to prevent malicious path manipulation. Organizations should apply the patches provided in macOS Sequoia 15.7, Sonoma 14.8, and Tahoe 26 promptly to mitigate the risk.

The primary impact of CVE-2025-43298 is the potential for local privilege escalation from a limited user or app context to root-level access on macOS systems. This elevation of privilege can lead to complete system compromise, allowing attackers to execute arbitrary code with the highest privileges, bypass security mechanisms, access or modify sensitive data, install persistent malware, and disrupt system availability. For organizations, this means that any compromised or malicious app running with user-level privileges could leverage this vulnerability to gain full control over the device. This is particularly concerning in enterprise environments where macOS devices are used for critical business functions, development, or access to sensitive networks. The vulnerability could facilitate lateral movement within networks, data exfiltration, or sabotage. Although exploitation requires local access, the widespread use of macOS in corporate, government, and creative sectors increases the risk profile. The absence of known exploits in the wild currently reduces immediate risk but does not diminish the urgency for patching, as proof-of-concept exploits could emerge rapidly given the vulnerability's nature.

1. Immediate application of security updates: Deploy macOS Sequoia 15.7, Sonoma 14.8, or Tahoe 26 patches that address the path validation flaw. 2. Restrict installation of untrusted or unsigned applications to reduce the risk of malicious apps gaining initial foothold. 3. Employ endpoint protection solutions capable of detecting suspicious privilege escalation attempts or anomalous behavior indicative of exploitation. 4. Implement strict user privilege management, limiting local user rights to the minimum necessary to reduce the attack surface. 5. Monitor system logs and audit trails for unusual directory path manipulations or access patterns that could signal exploitation attempts. 6. Use application whitelisting and macOS’s built-in security features such as System Integrity Protection (SIP) and Gatekeeper to prevent unauthorized code execution. 7. Educate users about the risks of running unverified software and the importance of timely system updates. 8. For high-security environments, consider additional hardening measures such as disabling unnecessary local accounts and enforcing multi-factor authentication for administrative access.