I’ve released a brand-new iOS customization tool called iDevice ToolKit, designed specifically to enable jailbreak-like tweaks on iOS 16.0 – 18.3.2—without needing a jailbreak. Developed here at iDevice Central, it uses the latest CVE-2025-24203 exploit by Ian Beer to modify in-memory files safely.

iDevice ToolKit lets you enable jailbreak-like tweaks and customizations on iOS 16.0 all the way up to iOS 18.3.2 on all devices. While this is not a jailbreak, it allows some customization on iOS that I believe you will find neat.

What is iDevice ToolKit?

The iDevice ToolKit application is a project I built especially for iDevice Central, and it takes advantage of the CVE-2025-24203 exploit to modify files in memory. This allows us to enable some jailbreak-like tweaks even on iOS 18.

The vulnerability is not a powerful one, but it’s enough to be able to zero out files in RAM, and a lot can be done with just that.

Here’s the full iOS compatibility chart:

This app is similar to mdc0 by Huy Nguyen, mdc0 UI by straight_tamago and timi2506, and dirtyZero by Skadz, from which I derived the initial inspiration and the tweak paths (files to be zeroed out in the memory).

The app can be installed with your favorite iOS IPA Signing tool, like Sideloadly, AltStore, FlekSt0re, ESign, or even TrollStore if you have a compatible device.

Once installed, iDevice ToolKit should be easy to use. I made the user interface modern, but I tried to keep it as easy to use as possible. I’ve also included the necessary instructions on how to perform a manual respring for tweaks to take effect.

The best part about my app is that it fetches the tweaks list directly from my GitHub repository, which means I can add new tweaks for everyone without having to necessarily provide a new IPA file.

Download iDevice ToolKit IPA

You can download the IPA file for the iDevice ToolKit customization app below. Since the app is completely free and open-source, you can also compile it yourself if you prefer.

Do keep in mind that iDevice Central (this site) and my official GitHub repo are the only official downloads for the app. I’ve also made an update checker for the app, which will tell you if a new version has been released, especially if an IPA update is necessary.

You can sideload the IPA file with your favorite iOS sideloading tools such as AltStore, Sideloadly, Feather, ESign, etc.

Current version: v1.1.0 fixes exploit reliability, making tweaks apply with a much higher success rate.

Currently Available iOS tweaks in iDevice ToolKit

Once installed, the application should be available on your Home Screen. The user interface is easy to use and has only 3 buttons:

• 🧼 Hide the Dock
• 🕹 Hide the Home Bar
• 🗂 Hide Folder Backgrounds
• 🔓 Hide Unlock Background
• 📺 Transparent Media Player & Notifications
• 📷 Disable Camera Shutter Sound
• 📞 Disable Call Recording Notification Sound (iOS 18+)
• More to come!

iDevice ToolKit Changelog

As I update the tool often to fix bugs or add new features, the changelog will reflect what is new and which updates are critical.

You will also be notified in the app itself when there is an important update.

v1.0.1 – Important exploit reliability update (IPA)

• Switched back to the C version of the exploit, which is much more reliable. It should now work to apply tweaks with a greater success rate.
• Added info about how to revert the tweaks.
• Minor bug fixes.

v1.0 – Initial Release

How to manually respring iOS to apply the tweaks?

Due to the limitations of the exploit used, you need to manually respring the device for tweaks to take effect. There are two ways of doing that:

1. Change the device language back and forth (this makes the device respring).
2. Change the Display Zoom setting in Settings -> Display & Brightness.

For the second option, just switch between the two options: Standard vs Bigger Text. You can revert to your preferred one immediately.

I’ve also provided instructions on how to manually respring inside the app.

How iDevice ToolKit Uses the CVE-2025-24203 Exploit to Customize iOS

This tweaking tool is based on the recently released CVE-2025-24203 vulnerability discovered by Ian Beer of Google Project Zero, which was presumably patched in iOS 18.4.

The CVE-2025-24203 vulnerability exploits a bug in Apple’s XNU kernel virtual memory (VM) subsystem, particularly the VM_BEHAVIOR_ZERO_WIRED_PAGES flag, which can be set by any process on its own vm_map_entry.

Once set, and under the right conditions, it causes physical memory pages to be zeroed, even if the process shouldn’t be allowed to modify those pages (e.g., they back a read-only, root-owned file).

1. The app opens a root-owned, read-only file and uses mmap() to map a page.
2. It marks the vm_entry for that page with VM_BEHAVIOR_ZERO_WIRED_PAGES.
3. The page is wired into memory using mlock() (unprivileged).
4. The page is then deallocated using mach_vm_deallocate(), triggering cleanup.

During the cleanup phase of the exploit:

• The page is looked up with VM_PROT_NONE, bypassing write checks.
• If the zero_wired_pages flag is set, the page is zeroed via pmap_zero_page().

The physical memory backing the file is now zeroed without write permissions, and you can modify protected files. It’s quite a clever exploit.

Frequently Asked Questions

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