The Kernel Exploit for PS4 4.05 is ready to go! The exploit was released by SpecterDev and made available via his GitHub. The release is new but appears to be a very promising progression towards opening the PS4's capabilities. Using the exploit, it will give full access of the Kernel to the users, allowing a variety of modifications. According to SpecterDev, the exploit is about 95% stable, with crashes only occurring very rarely.
SpecterDev gives us some details about the exploit:
In this project you will find a full implementation of the "namedobj" kernel exploit for the PlayStation 4 on 4.05. It will allow you to run arbitrary code as kernel, to allow jailbreaking and kernel-level modifications to the system. This release however, does not contain any code related to defeating anti-piracy mechanisms or running homebrew. This exploit does include a loader that listens for payloads on port 9020 and will execute them upon receival.
The developer also notes that he did not make the exploit without assistance from a few others, and attributes credit to the following:
Download PS4 4.05 Kernel Exploit
You can head over to SpecterDev's GitHub to download the latest release.
The 4.05 kernel exploit will only run on PS4 4.05 firmware (as suggested by the version of the exploit). If you are not yet up to the 4.05 update, you'll need to upgrade to that version. If your console is currently running a version higher than 4.05, you unfortunately cannot downgrade at this time — and will not be compatible with this exploit.
If you have a PS4 currently running 4.05 firmware, give this a try and let us know how it goes in the comments below.