$ ctf42

#refcount-bug CTF challenges

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

Pwn · 1

Often combined with

#use-after-free 1 #cet 1 #tcache-poisoning 1

Challenges

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Challenge CTF Weight Category Has
Code_Breaker SunshineCTF 2026 51.63 Pwn files wu 1