CVE-2025-30456 is a vulnerability identified in Apple’s iOS, iPadOS, and macOS operating systems that stems from a parsing issue in the handling of directory paths. Specifically, the vulnerability is due to insufficient validation of directory paths, which can be manipulated by a malicious app to escalate its privileges to root level. This type of vulnerability falls under CWE-281 (Improper Handling of Exceptional Conditions), indicating that the system fails to properly validate or sanitize input paths, allowing unauthorized privilege escalation. The vulnerability affects multiple Apple OS versions prior to the patched releases: iOS 18.4, iPadOS 18.4, macOS Ventura 13.7.5, macOS Sequoia 15.4, and macOS Sonoma 14.7.5. Exploitation requires user interaction, such as installing or running a malicious app, but does not require prior privileges or authentication. The CVSS v3.1 base score is 7.8 (high), reflecting the vulnerability’s ability to compromise confidentiality, integrity, and availability by granting root access. Apple mitigated the issue by implementing improved path validation to prevent malicious manipulation of directory paths. No known exploits have been reported in the wild as of the publication date, but the vulnerability poses a significant risk due to the high privileges that can be gained.

The impact of CVE-2025-30456 is substantial for organizations and individuals using Apple devices. Successful exploitation allows a malicious app to gain root privileges, effectively granting full control over the device. This can lead to unauthorized access to sensitive data, installation of persistent malware, bypassing of security controls, and disruption of system availability. For enterprises, this could result in data breaches, intellectual property theft, and compromise of corporate networks through infected endpoints. The ability to escalate privileges without prior authentication increases the attack surface, especially in environments where users may install untrusted apps or where app vetting is insufficient. The vulnerability also threatens user privacy and device integrity, potentially undermining trust in Apple’s ecosystem. Given the widespread use of Apple devices globally, the vulnerability could affect a broad range of sectors including finance, healthcare, government, and consumer markets.

To mitigate CVE-2025-30456, organizations and users should immediately apply the security updates released by Apple: iOS 18.4, iPadOS 18.4, macOS Ventura 13.7.5, macOS Sequoia 15.4, and macOS Sonoma 14.7.5. Beyond patching, organizations should enforce strict app installation policies, restricting installation to apps from trusted sources such as the Apple App Store with rigorous vetting. Employ Mobile Device Management (MDM) solutions to control app permissions and monitor device integrity. Educate users on the risks of installing untrusted applications and the importance of timely updates. Implement runtime protection and behavior monitoring to detect anomalous privilege escalation attempts. Regularly audit device configurations and installed applications to identify unauthorized changes. For high-security environments, consider additional endpoint detection and response (EDR) tools tailored for Apple devices to detect exploitation attempts. Finally, maintain an incident response plan that includes procedures for handling privilege escalation incidents on Apple platforms.