CVE-2025-43320 is a privilege escalation vulnerability in Apple macOS that enables an application to bypass launch constraint protections and execute code with elevated privileges. Launch constraints are security mechanisms designed to restrict how and under what conditions applications can be launched, preventing unauthorized code execution. The vulnerability arises from insufficient enforcement of these constraints, allowing a malicious app to circumvent them. Apple addressed this issue in macOS Sequoia 15.7.3 and macOS Tahoe 26 by introducing additional logic to strengthen launch constraint checks. The CVSS v3.1 score of 7.8 reflects a high-severity rating, with an attack vector requiring local access (AV:L), low attack complexity (AC:L), low privileges (PR:L), no user interaction (UI:N), and impacts to confidentiality, integrity, and availability (C:H/I:H/A:H). This vulnerability is classified under CWE-269, indicating improper privilege management. Although no exploits have been reported in the wild, the flaw could be leveraged by attackers who have local access to escalate privileges and gain full control over the affected system. This could lead to unauthorized data access, system manipulation, or denial of service. The vulnerability affects macOS platforms widely used in enterprise, creative industries, and government sectors, making it a critical concern for organizations relying on Apple systems.

The impact of CVE-2025-43320 is significant for organizations using affected macOS versions. Successful exploitation allows an attacker with local access to bypass security constraints and execute code with elevated privileges, potentially gaining full control over the system. This can lead to unauthorized access to sensitive data, modification or deletion of critical files, installation of persistent malware, and disruption of system availability. The high confidentiality, integrity, and availability impacts mean that both data breaches and operational disruptions are possible. Organizations with macOS-based infrastructure, especially those in sectors handling sensitive information such as finance, healthcare, government, and technology, face increased risk. The vulnerability could also be exploited in targeted attacks or insider threat scenarios. Although no known exploits exist currently, the ease of exploitation (low complexity, no user interaction) underscores the urgency of mitigation to prevent future attacks.

To mitigate CVE-2025-43320, organizations should immediately apply the security updates provided by Apple in macOS Sequoia 15.7.3 and macOS Tahoe 26. Beyond patching, organizations should enforce strict application whitelisting and code signing policies to prevent unauthorized applications from executing. Implementing endpoint detection and response (EDR) solutions can help monitor for suspicious local privilege escalation attempts. Restrict local user permissions to the minimum necessary and audit local accounts regularly to detect anomalies. Network segmentation can limit the spread of an attacker who gains local access. Additionally, educating users about the risks of installing untrusted software and maintaining robust backup and recovery procedures will reduce the impact of potential exploitation. Continuous monitoring of macOS security advisories and threat intelligence feeds is recommended to stay informed about any emerging exploits related to this vulnerability.