CVE-2025-30442 is a vulnerability affecting Apple macOS operating systems, specifically addressed in versions Sequoia 15.4, Ventura 13.7.6, and Sonoma 14.7.6. The root cause is improper input sanitization (CWE-20), which allows a local application with limited privileges to escalate its privileges to a higher level without requiring user interaction. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity, with the vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. This means the attack vector is local, with low attack complexity, requiring low privileges but no user interaction, and impacts confidentiality, integrity, and availability at a high level. The vulnerability could allow an attacker to execute arbitrary code or commands with elevated privileges, potentially leading to full system compromise. Apple has fixed the issue by improving input sanitization in the affected macOS versions. There are no known exploits in the wild yet, but the vulnerability poses a significant risk if exploited. The vulnerability is particularly concerning in environments where users may run untrusted applications or where attackers have some local access to the system.

The vulnerability allows local attackers or malicious applications to escalate privileges, potentially gaining root or system-level access. This can lead to unauthorized access to sensitive data, modification or deletion of critical system files, installation of persistent malware, and disruption of system availability. For organizations, this could mean compromised endpoints, lateral movement within networks, and potential data breaches. The high impact on confidentiality, integrity, and availability makes this a critical concern for enterprises, especially those with macOS-based infrastructure or users. The lack of required user interaction increases the likelihood of exploitation once local access is obtained. Although no exploits are currently known in the wild, the vulnerability could be leveraged in targeted attacks or by malware to gain persistent elevated access.

Organizations should immediately apply the security updates provided by Apple for macOS Sequoia 15.4, Ventura 13.7.6, and Sonoma 14.7.6 to remediate this vulnerability. Beyond patching, restrict local user permissions and enforce the principle of least privilege to limit the ability of applications to execute unauthorized actions. Implement application whitelisting and endpoint protection solutions that can detect and block suspicious privilege escalation attempts. Monitor system logs for unusual privilege escalation activities and conduct regular audits of installed applications to identify potentially malicious software. For environments with sensitive data, consider deploying macOS security features such as System Integrity Protection (SIP) and Endpoint Security Framework to reduce attack surface. Educate users about the risks of running untrusted applications and enforce policies that limit software installation to trusted sources only.