CVE-2025-24135: 
macOS vulnerability analysis and mitigation

A system extensions vulnerability was discovered in macOS Sequoia that could allow an application to gain elevated privileges. The vulnerability (CVE-2025-24135) was reported by security researcher Arsenii Kostromin (0x3c3e) and was fixed in macOS Sequoia 15.3, released on January 27, 2025 (Apple Support).

The vulnerability exists in the System Extensions component of macOS Sequoia and stems from improper message validation. Apple addressed this security issue by implementing improved message validation mechanisms in the system (Apple Support).

If exploited, this vulnerability could allow a malicious application to gain elevated privileges on the affected system, potentially leading to unauthorized access to system resources and sensitive data (Apple Support).

The vulnerability requires an application to be present on the system to exploit the weakness. No reports of active exploitation in the wild have been publicly disclosed at the time of the security update release (Apple Support).

Apple has released a security update to address this vulnerability in macOS Sequoia 15.3. Users are advised to update their systems to the latest version to receive the security patch (Apple Support, ASEC).