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07CTF 2026

Reasonable first CTF
Starts
Ends
Runs for
24 hours
Format
Jeopardy (online)
Rating weight
23.71 - Strong field
Teams registered
1

Run by 0bscuri7y, with prizes listed on CTFtime.

Event siteRegister on CTFtime

What the organisers say

07CTF is a 24-hour Capture The Flag competition organized by team 0bscuri7y. The event features challenges across a variety of categories, including web, pwn, OSINT, misc, and reverse engineering. This is not a beginner friendly CTF, there are a few 0-day challenges as well. No team size limit and separate AI/Human leaderboards.

Prep briefing

What past editions were made of

Counted across 6 challenges from 2025, using the categories the scoreboards themselves used. Two things to hold in mind while reading it. The archive indexes challenges that someone published a solution to, not whole scoreboards, so this is the shape of what people wrote about rather than of everything that was set. And where a scoreboard gave no category the challenge lands in misc, so a large misc slice means “unlabelled” rather than “miscellaneous”.

6 challenges is a thin sample. Read the split below as a hint about this event rather than as its profile, and lean on the linked editions instead - they are the actual record.

    What to have open when it starts

      The challenges people wrote about most

      From previous editions, ordered by how many published solutions each attracted. Reading two solutions to one of these is the closest thing to a warm-up for this event that exists.

      Also starting that week