Apple continuously works towards the security and stability of its devices. Recently, a type confusion vulnerability (CVE-2024-23222) was discovered which, when exploited, allows attackers to execute arbitrary codes on target devices. Apple has released patches to address this issue, and users should update their devices as soon as possible. In this post, we will take a closer look at the vulnerability, explain how it can be exploited, and provide information on the patches and fixes released by Apple.


The CVE-2024-23222 vulnerability is a type confusion issue, wherein the system misinterprets the type of an object, leading to unexpected behavior. This can be exploited by an attacker, who creates a malicious webpage and tricks the user into visiting it. Upon execution, the malicious code iterates through the device's memory, identifies the target object, and changes its type, ultimately leading to arbitrary code execution.

Here is a basic code snippet demonstrating the exploitation of type confusion vulnerability

// Vulnerable code example
function vulnerableFunction(obj) {
    return obj.value;

// Malicious code example
let targetObj = { value: "safe" };
let maliciousObj = { value: payloadFunction };

// Overwrite the target object's type, causing type confusion
targetObj.__proto__ = maliciousObj;

// Trigger the vulnerability


To exploit the CVE-2024-23222 vulnerability, an attacker must first craft a malicious webpage containing the code that causes type confusion. This can be achieved using JavaScript, as demonstrated in the code snippet above. Once the target object's type has been changed, the attacker has control over the affected device, allowing them to execute arbitrary code, access sensitive information, and compromise the system.

- Apple Security Advisory
- CVE-2024-23222: National Vulnerability Database (NVD) Detail
- Mozilla Developer Network: Prototype Inheritance in JavaScript

macOS Monterey 12.7.3

It is strongly recommended that users update their devices to the latest available software versions to protect themselves from this vulnerability.


The discovery of the CVE-2024-23222 vulnerability underlines the importance of keeping your devices up-to-date with the latest security patches. Apple has released updates to address the type confusion issue, preventing potential exploits and arbitrary code execution. By maintaining the latest software versions on your devices, you significantly reduce the risks of falling victim to cyber-attacks and ensure that your data and systems remain secure.


Published on: 01/23/2024 01:15:11 UTC
Last modified on: 01/30/2024 14:32:15 UTC