$ ctf42

#refcount-mismatch CTF challenges

1 CTF challenge using refcount-mismatch from 1 CTF (2026), 1 with writeups.

Pwn · 1

Often combined with

#role-forgery 1 #tcache-grooming 1 #use-after-free 1

Challenges

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Challenge CTF Weight Category Has
Phantom_Device
#use-after-free (uaf)#refcount-mismatch#tcache-grooming#role-forgery
 BDSec 2026 15.62 Pwn files wu 1