CVE-2025-43467 is a local privilege escalation vulnerability in Apple macOS identified in versions before macOS Tahoe 26.1. The vulnerability stems from insufficient privilege validation within the operating system, allowing an application with limited privileges (local access with some rights) to escalate to root-level privileges. The vulnerability does not require user interaction, which increases its risk profile, and the attack vector is local, meaning an attacker must have some level of access to the system already. The CVSS v3.1 base score is 7.8, reflecting high severity due to the combination of local attack vector, low attack complexity, the need for privileges but no user interaction, and high impact on confidentiality, integrity, and availability. The issue was addressed by Apple through improved privilege checks in macOS Tahoe 26.1, which prevents unauthorized privilege escalation. No public exploits have been reported yet, but the vulnerability poses a significant risk if exploited, as it could allow attackers to fully control affected systems, install persistent malware, or bypass security controls. The vulnerability is particularly critical in environments where multiple users share systems or where untrusted applications can be executed locally.

The impact of CVE-2025-43467 is substantial for organizations using affected macOS versions. Successful exploitation grants an attacker root privileges, enabling full control over the system, including access to sensitive data, installation of persistent malware, and the ability to disable security mechanisms. This compromises confidentiality, integrity, and availability of the system and potentially the broader network if the compromised device is connected to corporate resources. In enterprise environments, this could lead to data breaches, lateral movement within networks, and disruption of critical services. The vulnerability is especially concerning in sectors relying heavily on macOS devices, such as creative industries, software development, and certain government or research institutions. Although exploitation requires local access, the absence of user interaction and low complexity means that insider threats or malware that gains initial foothold could leverage this flaw to escalate privileges rapidly.

To mitigate CVE-2025-43467, organizations should immediately update all affected macOS systems to version Tahoe 26.1 or later, where the vulnerability has been patched with improved privilege checks. Beyond patching, organizations should enforce strict application control policies to limit execution of untrusted or unsigned applications. Employing endpoint protection solutions that monitor for privilege escalation attempts can provide additional defense. Restricting local user privileges and using macOS’s built-in security features such as System Integrity Protection (SIP) and mandatory access controls can reduce the attack surface. Regular auditing of user accounts and installed applications helps identify potential risks. For environments where immediate patching is not feasible, isolating macOS systems and limiting local access can reduce exploitation likelihood. Educating users about the risks of running untrusted software locally is also important. Finally, monitoring system logs for unusual privilege escalation attempts can aid early detection.