Critical Input Validation Vulnerability in macOS (CVE-2025-30452)

A critical vulnerability, tracked as CVE-2025-30452, has been identified in Apple’s macOS operating system. The flaw arises from an input validation issue that could lead to exploitation if not addressed. This issue affects macOS versions prior to 15.4 and has been fixed in macOS Ventura 13.7.5, macOS Sequoia 15.4, and macOS Sonoma 14.7.5.

Details of the Vulnerability

The issue stems from improper input validation checks in macOS. Attackers could exploit this vulnerability by providing malicious input, which could cause unintended behavior, including potential unauthorized access to system resources. The vulnerability was addressed by Apple with improved validation checks in the latest updates.

This vulnerability is categorized as CWE-20 (Improper Input Validation), meaning that the affected systems failed to properly validate input, leading to potential exploitation.

CVSS Score and Impact

The CVSS v3.1 score for CVE-2025-30452 is 9.8, indicating a critical vulnerability. The CVSS vector string is: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, which indicates the following:

• Attack Vector (AV): Network – The vulnerability can be exploited remotely.
• Attack Complexity (AC): Low – The exploit does not require complex conditions.
• Privileges Required (PR): None – No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None – The exploit can occur without user interaction.
• Confidentiality Impact (C): High – Sensitive data could be accessed by the attacker.
• Integrity Impact (I): High – The attacker can alter critical system data.
• Availability Impact (A): High – The attacker could cause disruptions to system availability.

Mitigation

Apple has addressed the issue with improved validation checks in the latest system updates. Users are strongly advised to update their macOS devices to macOS Ventura 13.7.5, macOS Sequoia 15.4, or macOS Sonoma 14.7.5 to mitigate the risk and secure their devices against this critical vulnerability.

For more information, refer to Apple’s security update page: Apple Security Updates

Conclusion

The CVE-2025-30452 vulnerability underscores the importance of proper input validation to prevent unauthorized access and exploitation. Apple users are strongly encouraged to update their devices immediately to protect against potential risks.