Blog | b4r

2025

the first chall about CVE-2025-5518 i've solved

it is easy tho

b b4r
December 30, 2025
6 min read

vulnerability cve web exploitation ctf
reversing linux kernel is easy (?)

a writeup of astroctf 2025 rev/ghost

b b4r
December 19, 2025
1 min read

reverse engineering linux kernel ctf