Adieu: PS4 Kernel exploit for firmware 4.05 and below, fully detailed by team Fail0verflow
Important update: in an earlier version of this article we stated this exploit was working on firmware 4.06 and below. It is actually working on 4.05 and below. The mistake was originally in the Fail0verflow article which stated the bug was patched in 4.07. They have since then corrected their article.
Team Fail0verflow has just published a complete writeup of a kernel exploit for the PS4. This exploit is, according to the team of hackers, valid up to PS4 firmware 4.06 4.05 included, and was patched by Sony in firmware 4.07 4.06. They say this was the same exploit used in the infamous Chaitin Tech Jailbreak*, although the two teams found the exploit independently.
Although the Fail0verflow article does not link to a full repository containing the weaponized exploit, the writeup and accompanying sample code should be more than enough for devs on the PS4 scene to release an operational Jailbreak for firmware 4.06 4.05 and below extremely soon. I wouldn’t be surprised to see a full fledged release in the days to come, if not sooner. We have not confirmed that the writeup is actually giving the full details, however there’s no reason to believe, given the team’s credentials, that this would be an elaborated hoax.
The exploit is codenamed “Adieu” because it’s been patched a while ago, and is also referred to as namedobj exploit, because it leverages a vulnerability in the namedobj_create function.
Those of us who have stayed on a lower firmware will be rewarded by this release. For those who are on the latest firmware 5.00, there is still hope, although as always this confirms you should try as much as possible to stay on a low firmware.
What’s next?
It is pretty much guaranteed that a fully operational Jailbreak will come very soon for owners of PS4 4.06 4.05 and below. From there, people should be able to leverage the existing hacks, from Linux support, to “backups” as well as basic homebrew. Stay tuned as we follow up on this breakthrough.
Source Fail0verflow, thanks to @FigaroCool
* In the past, hackers have stated that the Chaitin tech vulnerability was fixed in firmware 4.06. The original Fail0verflow writeup initially stated that this was fixed in 4.07, but they have since then corrected their article and confirmed this was patched in 4.06.




this is the type of the news that needs to be posted
not some dude who kept bragging about new exploit every new fw releases
Agreed
yup but unfortunately year after the hack was patched – instead of CFW in 2016 now we all will have to hunt for PS4 with 4.05 or lower
AFAIK PS4 Slim comes with 3.55 out of the box. At least mine did and there are no mentions of another revisions on ps4devwiki.
well 4.06 was realeased in November 2016 so are you 100% sure that all PS4 Slims in stores are not higher than 3.55?
all the ps4/slims/pros in store are higher than the golden firmware (4.05)
go to ebay and begin your search, should have bought a PS4 earlier like wololo told you, now you will suffer the consequences for being so slow
You should have waited like all the other smart people, this is just like the PS3 with 3.55.
4.05 is the golden FW.
i did as smartest as possible – stayed on PS3 CFW and did not buy PS4 until proper JB is out which however still is not…
That’s idiocy at it’s finest, not only have you missed out on a ton of the greatest games ever made, but now you have to pay a massive premium for a 4.05 PS4. Good luck with that!
and here I am with my 2.02 FW PS4 waiting for this day to come.
Dos it work the same like an iPhone Jailbreak?
can we get a article with an overview of the PS4 Pro versions, which version does a retail unit ship with today? Or with past bundles?
hehehe, got a ps4 pro on 4.05. I love it when a plan comes together.
When did you buy it?
february this year
It was on 3.70 when I purchased it but since Yakuza 0 required 4.05 (a valid firmware) I updated the console.
I have a PS4 Pro on 3.70 waiting in the wings.
I also have a 2nd PS4 Pro on 3.70 if anyone is interested.
isn’t all current ps4 on lower fw ? lol
Yup all of them are on low firmware. All of them. Every single one of them. Even my consoles on the low firmware 5.00. All consoles are on low firmware.
Please tell me you have brain damage it would at least be an excuse
you are fat
Yes! 4.06 master class!
it was patched on 4.06 so you cannot use the exploit
And to be honest, I wouldn’t expect a downgrade method any time soon, plus for now and probably for quite a while, it shouldn’t be too hard to obtain another ps4 on a low enough fw. And there’s a video tutorial on how to block specific Sony update servers so that it is impossible to accidentally update the console over the internet. Although the video was being done on a 1.76 ps4, but I think it should work for any ps4 on any firmware, jailbroken or not.
The article says that it was patched by Sony in 4.06.
https://www.youtube.com/watch?v=haakZ7UwR2A
hurray!!
I can’t wait.. my ps4 is still on firmware 3.55..
Man, I was just about to give up waiting and update. So happy I waited. Let the games begin. Praise Sony and the hackers.
fake
If I go to a store today and buy a PS4 Pro, which firmware it will be on? What are the odds of getting one with <= 4.05?
0%, they all come with higher firmwares, should have bought it earlier and been patient like everyone else. Sucks for you. Can’t wait for the hacking on my 4.05 PS4 😀
Thank god. Kindly stop giving qwerty a platform after this, Unless he releases something. It was annoying me and many others.
He’s got a lot of growing up to do.
Just like you kids.
Dude, I’m 30; qwert is still a squirt.
See how Fail0verflow release the kernel exploit, he doesn’t want attention, that’s why we trust him.
Qwerty, I’m sure you read every news and comment about yourself, you WILL lose your reputation if you keep tweeting about your skills.
Holy ***, they delivered? This… this is amazing.
Ohh..
I am on 4.07…. With a ps4 pro…
I hope not 4.06 will be the 2. golden firmware (after 1.76)
what about 4.55? :((((((((((((((
My c#$k went from a mushroom to a full blown glock 9 this is great news!
i’ve been smiling all day…
Hopefully he will release it!
Feels good bought a pro and never opened it. just checked firmware 3.7 🙂
https://www.vg247.com/2016/10/26/ps4-firmware-update-4-05-released/
well… it will be hard to get consoles with firmware with 1year 🙁
perfect i have a ps4 with ofw 4.55 and another with 3.5w ofw
2 x ps4 1 fat 1 slim never openned bought first month of release. Time to unpack
Wow, literally 2 weeks after I finally updated from 4.05 to 5.00. Why even delay the release if it was patched so long ago?
Who knows, it could be for any reason. Maybe they found additional stuff in recent firmwares, updated their own console to 5.00, and thought it was time. Maybe they wanted to publish a while ago but were too lazy to do the writeup. It could be any reason, really.
PS4 slim on 3.55!
o por deos it´s happening!!!!!!!
si es verdad!
ps4 3.55 🙂
I’m gonna make sweet, sweet love to Aurora tonight.
Or maybe you mean The_Zett?
Mmmm oh baby
Finally, we can ignore that qwertyorsuqdiq guy and focus on how awesome the upcoming homebrews will be.
I have my PS4 on the very first firmware 1.0 I’m glad I waited.
Lol, you should’ve sold it.
It will be a matter of time before people find a way to downgrade the PS4. This is a kernel exploit which is present on new units on the store shelf.
no it’s not dummy, new units in the store have FW much higher than this
Thanks for the news!
Do someone know Slim bundles with FW <= 4.05 ?
If I buy a Ps4 PRO out of the shops brand new would it still be on a lower firmware under 4.05? Thank you
As I wrote in my comment, I bought a PS4 Pro early July and it was on 4.07. Take that as you will.
Hopefully some kind charitable gentleman releases a 5.00 exploit, so I won’t have to buy a third console. My PS4 where I mainly game is at 5.00 already and jusy yesterday I updated my PS4Pro(which was sitting boxed for like 3 months in my room!) to 5.00. That being said, its firmware was actually 4.07 and not 4.05, so it was not entirely a dumb move, but still… Damn.
Got a slim last year on 3.55, some stores around me still got some from black friday last year.
So want to run linux/homebrew
f0000000000000k!!!!!!
Relax. By the time anything happens on 4.05, we’ll have kexploits for 5.01.
4.05 is old and dead.
If CFW/homebrew/game-backup/linux/steam didn’t happen a few days after the kexplot on 4.05 was released… it ain’t gonna happen.
or until the next GTA is released forcing everyone to update to V7? tell me about it lol
How about 4.70 ? hehe.
Mine is on 3.50 FeelsGoodMan
Same here. Good ***.