$ ctf42

#kernel-exploitation CTF challenges

6 CTF challenges using kernel-exploitation from 5 CTFs (2020–2026), 6 with writeups. Mostly Pwn (83%) and Misc (17%).

Pwn · 5 Misc · 1

Often combined with

#use-after-free 2 #out-of-bounds 2 #jop 1 #heap-overflow 1 #negative-index 1

Challenges

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Challenge CTF Weight Category Has
Baby_Kernel
#kernel-exploitation#use-after-free (uaf)#jop
 UIUCTF 2025 – Pwn files wu 2
kSMS_Secure_Message_Storage
#kernel-exploitation#use-after-free (uaf)
 TeamItaly 2023 24.88 Pwn files wu 1
meowmow
#kernel-exploitation#out-of-bounds (oob)#heap-overflow
 zer0pts 2020 24.56 Misc files wu 1
krce
#kernel-exploitation#negative-index#out-of-bounds (oob)
 zer0pts 2022 35.97 Pwn files wu 1
krwd
#kernel-exploitation
 TRX 2026 – Pwn files wu 1
Bloat
#kernel-exploitation
 UTCTF 2022 – Pwn files wu 1