Elevating Privileges from Firefox to Android Root

Which is why they released the code to the exploit before it's been patched, meaning bad actors now likely have months to profit off it before a meaningful % of devices are patched.

Good news I guess?

Re: Elevating Privileges from Firefox to Android Root

#5

Post by krautsauer » Fri, Jul 03, 2026, 11:31 PM UTC

LordShredda wrote: post #2

Well, I shouldn't have clicked this. This claims to ask for confirmation before running the exploit and my wallpaper hasn't really changed yet

Would be somewhat nice to have the link in the comment text, yeah.

> Warning: Experimental Kernel Exploit > By clicking “Step 2”, you acknowledge and agree that this website will run an open-source kernel exploit on your device.

Then again, one does take the risk of landing on a site like that and not being asked every other time clicking a link.

Re: Elevating Privileges from Firefox to Android Root

#6

Post by tadfisher » Fri, Jul 03, 2026, 11:39 PM UTC

From the linked source code [0], the vulnerabilities are:

CVE-2026-10702 [1]: A crafted JavaScript payload can trigger JIT miscompilation in Firefox versions prior to 151.0.3, leading to type confusion and potential renderer crashes or memory corruption.

CVE-2026-43499 [2]: When the kernel's real-time mutex (rtmutex) component performs a specific operation called 'proxy-lock rollback' during futex requeue, it incorrectly handles task pointers. This can lead to a 'Use-After-Free' (UAF) vulnerability, where the system attempts to use memory that has already been released. A local attacker could potentially exploit this to gain elevated privileges or execute unauthorized code.

0: https://github.com/NebuSec/CyberMeowfia/tree/main/IonStack

1: https://www.sentinelone.com/vulnerability-database/cve-2026-...

2: https://access.redhat.com/security/cve/cve-2026-43499