DEF CON CTF 33 Quals/holographic·350ptsholographic — DEF CON CTF 33 QualsCryptography challenge from the 2025 qualifier archive.CryptohardGitHub#crypto#defcon-33-quals#defconMay 18, 2025
DEF CON CTF 33 Quals/callmerust·400ptscallmerust — DEF CON CTF 33 QualsRust binary from DEF CON 33 Quals open-source release.PwnhardGitHub#pwn#defcon-33-quals#defconMay 18, 2025
DEF CON CTF 33 Quals/petshop·200ptspetshop — DEF CON CTF 33 QualsOfficial challenge source — petshop service exploitation.PwnmediumGitHub#pwn#defcon-33-quals#defconMay 18, 2025
PlaidCTF 2025/zerodeo·50ptszerodeo — PlaidCTF 2025Welcome / sanity-check style challenge.MisceasyBlog#misc#plaidctf-2025#plaidctfApr 6, 2025
PlaidCTF 2025/ocalc·300ptsocalc — PlaidCTF 2025Pwnable from PlaidCTF 2025 — see community writeups on CTFtime.PwnmediumCTFtime#pwn#plaidctf-2025#plaidctfApr 6, 2025
PlaidCTF 2025/Fool's Gulch·200ptsFool's Gulch — PlaidCTF 2025Prospectin reversing — satisfy hundreds of bit-vector constraints with Z3.Reverse EngineeringmediumBlog#rev#plaidctf-2025#plaidctfApr 6, 2025
PlaidCTF 2025/Tales from the Crypt·500ptsTales from the Crypt — PlaidCTF 2025TLS renegotiation leaks partial RSA private key material — recover d via Coppersmith.CryptoinsaneBlog#crypto#rsa#plaidctf-2025Apr 6, 2025
PlaidCTF 2025/Bounty Board·500ptsBounty Board — PlaidCTF 2025Heap challenge with multiple allocators — UAF and type confusion on the bounty board.PwnhardGitHub#pwn#plaidctf-2025#plaidctfApr 6, 2025
picoCTF 2025/Cookie Monster Secret Recipe·100ptsCookie Monster Secret Recipe — picoCTF 2025Web challenge involving cookies and client-side inspection.WebeasyBlog#web#picoctf-2025#picoctfMar 17, 2025
picoCTF 2025/Quantum Scrambler·300ptsQuantum Scrambler — picoCTF 2025Harder crypto challenge from the 2025 scoreboard.CryptohardBlog#crypto#picoctf-2025#picoctfMar 17, 2025
picoCTF 2025/EVEN RSA CAN BE BROKEN???·200ptsEVEN RSA CAN BE BROKEN??? — picoCTF 2025RSA with an even public exponent — factor N and decrypt.CryptomediumBlog#crypto#rsa#picoctf-2025Mar 17, 2025
picoCTF 2025/PIE TIME·200ptsPIE TIME — picoCTF 2025Position-independent executable basics — leak and ret2win.PwnmediumBlog#pwn#picoctf-2025#picoctfMar 17, 2025
picoCTF 2025/hashcrack·100ptshashcrack — picoCTF 2025Chain MD5, SHA-1, and SHA-256 hashes to recover the password.CryptoeasyBlog#crypto#picoctf-2025#picoctfMar 17, 2025
picoCTF 2025/Flag Hunters·100ptsFlag Hunters — picoCTF 2025Intro challenge — follow the story prompts to recover the flag.MisceasyBlog#beginner#misc#picoctf-2025Mar 17, 2025
DiceCTF 2025 Quals/locked-room·443ptslocked-room — DiceCTF 2025 QualsBinary exploitation with constrained interaction.PwnhardGitHub#pwn#dicectf-quals-2025#dicectfFeb 23, 2025
DiceCTF 2025 Quals/bassoon·500ptsbassoon — DiceCTF 2025 QualsTop-difficulty pwn — zero solves during the live event.PwninsaneGitHub#pwn#dicectf-quals-2025#dicectfFeb 23, 2025
DiceCTF 2025 Quals/fairy-ring·300ptsfairy-ring — DiceCTF 2025 QualsMedium crypto — see official sources and CTFtime writeups.CryptomediumGitHub#crypto#dicectf-quals-2025#dicectfFeb 23, 2025
DiceCTF 2025 Quals/vorpal-sword·122ptsvorpal-sword — DiceCTF 2025 QualsCrypto challenge from DiceCTF 2025 Quals archive.CryptomediumGitHub#crypto#dicectf-quals-2025#dicectfFeb 23, 2025
DiceCTF 2025 Quals/safestnote·443ptssafestnote — DiceCTF 2025 QualsHigh-point web — one of the least-solved web tasks in quals.WebhardGitHub#web#dicectf-quals-2025#dicectfFeb 23, 2025
DiceCTF 2025 Quals/cookie-recipes-v3·105ptscookie-recipes-v3 — DiceCTF 2025 QualsClassic web challenge — inspect cookies and server-side logic.WebeasyGitHub#web#dicectf-quals-2025#dicectfFeb 23, 2025