PS5 Release: McCaulay adds PS5 4.03 offsets and filesystem dump payload for Mast1c0re

Developer McCaulay has committed a few changes to the Mast1c0re repository yesterday. The changes add PS5 Firmware 4.03 offsets, as well as a Filesystem dumping payload. Mast1c0re now supports PS5 Firmware 6.50 and 4.03. (as well as a plethora of PS4 Firmwares up to 10.70 included)

Other firmwares (in particular PS5 7.60) are in theory compatible, but the matching offsets need to be found for that to happen (this would require a decrypted PS5 Firmware)

What is Mast1c0re for PS5 and PS4?

Mast1c0re is an unpatched exploit for PS4 and PS5, which leverages a vulnerability in the PS2 emulation layer of Sony’s newer consoles. The vulnerability was disclosed, and described with great detail, by PlayStation hacker CTurt in September last year. Since then, new released have built upon the exploit, allowing in particular for emulators and PS2 ISOs to run on the PS4 and PS5.

Back then, CTurt stated Sony had no plan to fix the vulnerability, which seems to be confirmed recently with the 10.70 Mast1c0re release for PS4, and no announce from hackers that the exploit has been patched on PS5.

Download latest Mast1c0re for PS5/PS4

Mast1c0re requires you to purchase and install the game Okage on your PS4 (it is a PS2 game that you can purchase on the PSN). Remember that what you can do with the hack is fairly limited, so think carefully about purchasing that game if money is tight.

You can download the latest Mast1c0re files here. We have a basic guide on how to run the exploit here.