CVE-2023-27930: 
macOS vulnerability analysis and mitigation

A type confusion vulnerability (CVE-2023-27930) was discovered affecting multiple Apple operating systems. The vulnerability was fixed in iOS 16.5 and iPadOS 16.5, watchOS 9.5, tvOS 16.5, and macOS Ventura 13.4, released on May 18, 2023. The vulnerability was discovered by researcher 08Tc3wBB of Jamf (Apple iOS, Apple macOS).

The vulnerability is a type confusion issue in the kernel component that was addressed with improved checks. The vulnerability has a CVSS v3.1 base score of 7.8 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified as CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') (NVD).

If exploited, this vulnerability could allow a malicious application to execute arbitrary code with kernel privileges, potentially giving the attacker complete control over the affected device (Apple iOS, Apple macOS).

Apple has addressed this vulnerability by implementing improved type checks in the affected systems. Users should update to iOS 16.5 and iPadOS 16.5, watchOS 9.5, tvOS 16.5, or macOS Ventura 13.4 or later versions to protect against this vulnerability (Apple iOS, Apple macOS).