CVE-2025-43333 in macOS
Summary
by MITRE • 09/16/2025
A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26. An app may be able to gain root privileges.
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Analysis
by VulDB Data Team • 09/17/2025
This vulnerability represents a critical permissions flaw in macOS Tahoe 26 that could potentially allow malicious applications to escalate privileges to root level access. The issue stems from insufficient access controls within the operating system's permission model, creating a pathway for unauthorized code execution with elevated privileges. The vulnerability has been categorized under CWE-276 which specifically addresses incorrect permissions for critical resources, making it a significant concern for system security and integrity.
The technical nature of this flaw suggests that an application with limited user permissions might be able to exploit a weakness in the system's privilege separation mechanisms. This could occur through various vectors including improper file access controls, insecure API usage, or flawed privilege checking routines within the kernel or system services. The vulnerability's classification as a privilege escalation issue indicates that it allows an attacker to bypass normal security boundaries that typically prevent applications from accessing system-critical resources or performing administrative functions.
From an operational perspective, this vulnerability poses a severe risk to macOS environments as it could enable attackers to gain complete system control without requiring administrative credentials. The potential impact includes unauthorized data access, system modification, persistence mechanisms, and the ability to evade security monitoring systems. Attackers could leverage this flaw to establish backdoors, exfiltrate sensitive information, or deploy additional malware with unrestricted system access. The vulnerability affects the fundamental security model of macOS, potentially compromising the integrity of the entire operating system.
Organizations should immediately implement mitigations including deploying the latest macOS Tahoe 26 update which contains the necessary patches to address this permissions issue. System administrators should conduct thorough security assessments to identify any applications that might be exploiting this vulnerability and implement strict application control policies. The mitigation strategy should include monitoring for suspicious privilege escalation attempts and ensuring that only trusted applications have access to critical system resources. Additionally, organizations should review their existing security configurations and consider implementing additional layers of protection such as kernel extensions monitoring and privilege enforcement mechanisms to prevent unauthorized access to system-critical functions. This vulnerability demonstrates the importance of maintaining up-to-date security patches and highlights the need for continuous monitoring of system integrity to prevent exploitation of permission-related flaws.