CTF Time

Name: openECSC 2025 (an x3ctf event.)
Date: Sept. 29, 2025, 6 p.m. — 05 Oct. 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://openec.sc/
Rating weight: 0
Event organizers: x3CTF

Name: Securinets CTF Quals 2025 (an Securinets CTF event.)
Date: Oct. 4, 2025, 1 p.m. — 05 Oct. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://quals.securinets.tn/
Rating weight: 70.50
Event organizers: Securinets

Name: COMPFEST CTF 2025 (an COMPFEST CTF event.)
Date: Oct. 4, 2025, 2 a.m. — 05 Oct. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://compfest.id/
Rating weight: 64.00
Event organizers: CSUI

Name: CRAC CTF - Cloud and IAM CTF (an CRAC CTFs event.)
Date: Oct. 4, 2025, 8:30 a.m. — 04 Oct. 2025, 11:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Delhi, India
Offical URL: https://defhawk.com/battleground/raid/cloud-and-iam-ctf
Rating weight: 0.00
Event organizers: h4wk

Name: WMCTF2025 (an WMCTF event.)
Date: Sept. 20, 2025, 2 a.m. — 21 Sept. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://wmctf.wm-team.cn/
Rating weight: 80.00
Event organizers: W&M

Name: ATLA Opening Date CTF (an ATLA Opening Date CTF event.)
Date: Sept. 20, 2025, 5 a.m. — 20 Sept. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Kyrgyzstan, Bishkek
Offical URL: https://ctf.atlabyte.com/
Rating weight: 0
Event organizers: ATLA CTF

Name: Holmes CTF 2025 (an Hack The Box CTF event.)
Date: Sept. 22, 2025, 1 p.m. — 26 Sept. 2025, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.hackthebox.com/event/details/holmes-ctf-2025-2536
Rating weight: 24.00
Event organizers: Hack The Box

Name: InfiniteCTF Qualifiers (an InfiniteCTF event.)
Date: Sept. 27, 2025, 7 p.m. — 28 Sept. 2025, 03:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://register.redteamassociation.com/
Rating weight: 0.00
Event organizers: Red Team Association

Name: SunshineCTF 2025 (an SunshineCTF event.)
Date: Sept. 27, 2025, 2 p.m. — 29 Sept. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://sunshinectf.org/
Rating weight: 51.65
Event organizers: Knightsec

Name: FAUST CTF 2025 (an FAUST CTF event.)
Date: Sept. 27, 2025, noon — 27 Sept. 2025, 21:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://2025.faustctf.net/
Rating weight: 92.50
Event organizers: FAUST

Name: DFIR Labs Digital Forensics Challenge by The DFIR Report (an DFIR Labs CTF event.)
Date: Sept. 27, 2025, 4:30 p.m. — 27 Sept. 2025, 20:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://dfirlabs.thedfirreport.com/dfirchallenge
Rating weight: 0
Event organizers: The DFIR Report

Name: Iran Tech Olympics CTF 2025 (an Iran Tech Olympics CTF event.)
Date: Sept. 26, 2025, 1 p.m. — 27 Sept. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.olympics.tech/
Rating weight: 25.00
Event organizers: ASIS

Name: HackornCTF 2025 Quals (an Hackorn event.)
Date: Sept. 25, 2025, midnight — 25 Sept. 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.secpen.org/
Rating weight: 0
Event organizers: Hackorn

Name: Srdnlen CTF 2025 Finals (Sardinia Cyber Camp) (an Srdnlen CTF event.)
Date: Sept. 25, 2025, 10 a.m. — 25 Sept. 2025, 22:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Italy, Cagliari
Offical URL: https://ctf.srdnlen.it/
Rating weight: 25.00
Event organizers: Srdnlen

Name: CrewCTF 2025 (an CrewCTF event.)
Date: Sept. 19, 2025, 9 p.m. — 21 Sept. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://2025.crewc.tf/
Rating weight: 38.93
Event organizers: thehackerscrew

Name: Ctrl+Space CTF Quals (an Ctrl+Space CTF event.)
Date: Sept. 20, 2025, 9 a.m. — 21 Sept. 2025, 08:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctrl-space.gg/
Rating weight: 25.00
Event organizers: ESA

Name: K17 CTF (an K17 CTF event.)
Date: Sept. 19, 2025, 8 a.m. — 21 Sept. 2025, 08:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.secso.cc/
Rating weight: 24.83
Event organizers: K17

Name: CDCTF 2025 (an CDCTF event.)
Date: Sept. 20, 2025, 3 p.m. — 21 Sept. 2025, 03:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://uacrimsondefense.github.io/cdctf.html
Rating weight: 25.00
Event organizers: Crimson Defense

Name: CyberKumbez 2025 (an CyberKumbez event.)
Date: Sept. 17, 2025, 10 a.m. — 19 Sept. 2025, 16:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Astana, Kazakhstan
Offical URL: https://kazhackstan.com/
Rating weight: 0.00
Event organizers: KazHackStan

Name: VolgaCTF 2025 Final (an VolgaCTF Final event.)
Date: Sept. 18, 2025, 6 a.m. — 18 Sept. 2025, 15:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Russia. Samara
Offical URL: https://volgactf.ru/en/volgactf-2025/final/
Rating weight: 12.40
Event organizers: VolgaCTF.org