Name: KubanCTF Qualifier 2025
Date: 23 Aug., 07:00 UTC — 23 Aug. 2025, 17:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 1 teams will participate
More info: https://ctftime.org/event/2894
Date: 23 Aug., 07:00 UTC — 23 Aug. 2025, 17:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 1 teams will participate
More info: https://ctftime.org/event/2894
ctftime.org
KubanCTF Qualifier 2025
<strong>Kuban CTF</strong> is a team competition where you and up to four teammates can challenge your cybersecurity ...
Name: GaianSpace CTF 2025
Date: 14 Nov., 14:00 UTC — 17 Nov. 2025, 14:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 7 teams will participate
More info: https://ctftime.org/event/2732
Date: 14 Nov., 14:00 UTC — 17 Nov. 2025, 14:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 7 teams will participate
More info: https://ctftime.org/event/2732
ctftime.org
GaianSpace CTF 2025
GaianSpace CTF 2025 CTF event
Name: CTFZone 2025 Quals
Date: 16 Aug., 10:00 UTC — 17 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 92.45
Notes: 113 teams will participate
More info: https://ctftime.org/event/2839
Date: 16 Aug., 10:00 UTC — 17 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 92.45
Notes: 113 teams will participate
More info: https://ctftime.org/event/2839
ctftime.org
CTFZone 2025 Quals
BI.ZONE is ready to announce the date of CTFZone Quals 2025!
The first online stage will take place on August 16 at ...
The first online stage will take place on August 16 at ...
Name: RCTF 2025
Date: 20 Aug., 10:00 UTC — 22 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 16 teams will participate
More info: https://ctftime.org/event/2771
Date: 20 Aug., 10:00 UTC — 22 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 16 teams will participate
More info: https://ctftime.org/event/2771
ctftime.org
[POSTPONED]RCTF 2025
Notice: RCTF 2025 postponed to November 15, 2025
Due to several unfinished preparations on our side — including fi...
Due to several unfinished preparations on our side — including fi...
Name: BrunnerCTF 2025
Date: 22 Aug., 12:00 UTC — 24 Aug. 2025, 12:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 21 teams will participate
More info: https://ctftime.org/event/2835
Date: 22 Aug., 12:00 UTC — 24 Aug. 2025, 12:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 21 teams will participate
More info: https://ctftime.org/event/2835
ctftime.org
BrunnerCTF 2025
Get ready all cyber chefs and code connoisseurs, Brunnerne has cooked up their very first BrunnerCTF for all of you t...
Name: HITCON CTF 2025
Date: 22 Aug., 14:00 UTC — 24 Aug. 2025, 14:00 UTC
Format: Jeopardy
Location: On-line
Weight: 100.00
Notes: 94 teams will participate
More info: https://ctftime.org/event/2783
Date: 22 Aug., 14:00 UTC — 24 Aug. 2025, 14:00 UTC
Format: Jeopardy
Location: On-line
Weight: 100.00
Notes: 94 teams will participate
More info: https://ctftime.org/event/2783
ctftime.org
HITCON CTF 2025
[TBD]
Name: Sawah Cyber Security CTF 2025
Date: 23 Aug., 05:00 UTC — 23 Aug. 2025, 09:00 UTC
Format: Jeopardy
Location: Indonesia, Bali
Weight: 0
Notes: Individual
More info: https://ctftime.org/event/2824
Date: 23 Aug., 05:00 UTC — 23 Aug. 2025, 09:00 UTC
Format: Jeopardy
Location: Indonesia, Bali
Weight: 0
Notes: Individual
More info: https://ctftime.org/event/2824
ctftime.org
Sawah Cyber Security CTF 2025
We invite you to participate in an exciting 4-hours Capture The Flag (CTF) Hacking competition in the beautiful islan...
Name: KubanCTF Qualifier 2025
Date: 23 Aug., 07:00 UTC — 23 Aug. 2025, 17:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 8 teams will participate
More info: https://ctftime.org/event/2894
Date: 23 Aug., 07:00 UTC — 23 Aug. 2025, 17:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 8 teams will participate
More info: https://ctftime.org/event/2894
ctftime.org
KubanCTF Qualifier 2025
<strong>Kuban CTF</strong> is a team competition where you and up to four teammates can challenge your cybersecurity ...
Name: PECAN+ CTF 2025
Date: 24 Aug., 01:00 UTC — 24 Aug. 2025, 05:00 UTC
Format: Jeopardy
Location: Australia
Weight: 0.00
Notes: 5 teams will participate
More info: https://ctftime.org/event/2882
Date: 24 Aug., 01:00 UTC — 24 Aug. 2025, 05:00 UTC
Format: Jeopardy
Location: Australia
Weight: 0.00
Notes: 5 teams will participate
More info: https://ctftime.org/event/2882
ctftime.org
PECAN+ CTF 2025
PECAN+ is an Australian Capture The Flag (CTF) style cyber security competition for high school-aged competitors (yr ...
Name: TFC CTF 2025
Date: 29 Aug., 10:00 UTC — 31 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 58.19
Notes: 29 teams will participate
More info: https://ctftime.org/event/2822
Date: 29 Aug., 10:00 UTC — 31 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 58.19
Notes: 29 teams will participate
More info: https://ctftime.org/event/2822
ctftime.org
TFC CTF 2025
This year, The Few Chosen are thrilled to host our fifth annual Capture The Flag (CTF) event, set to take place from ...
Name: Full Weak Engineer CTF 2025
Date: 29 Aug., 10:00 UTC — 31 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 4 teams will participate
More info: https://ctftime.org/event/2864
Date: 29 Aug., 10:00 UTC — 31 Aug. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 4 teams will participate
More info: https://ctftime.org/event/2864
ctftime.org
Full Weak Engineer CTF 2025
Full Weak engineer CTF is a Jeopardy-style CTF competition organized by the CTF team full weak engineer(脆弱エンジニア). The...
Name: Blue Arena
Date: 29 Aug., 14:04 UTC — 31 Aug. 2025, 14:33 UTC
Format: Jeopardy
Location: On-line
Weight: 0
Notes: Individual
More info: https://ctftime.org/event/2849
Date: 29 Aug., 14:04 UTC — 31 Aug. 2025, 14:33 UTC
Format: Jeopardy
Location: On-line
Weight: 0
Notes: Individual
More info: https://ctftime.org/event/2849
ctftime.org
Blue Arena
? Blue Arena – The Ultimate Forensics Battleground
Step into the Blue Arena, a high-stakes digital warzone where onl...
Step into the Blue Arena, a high-stakes digital warzone where onl...
Name: NNS CTF 2025
Date: 29 Aug., 16:00 UTC — 31 Aug. 2025, 16:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 19 teams will participate
More info: https://ctftime.org/event/2684
Date: 29 Aug., 16:00 UTC — 31 Aug. 2025, 16:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 19 teams will participate
More info: https://ctftime.org/event/2684
ctftime.org
NNS CTF 2025
Join us for the first edition of jeopardy-style CTF organized by the Norske Nøkkelsnikere CTF team! There will be cha...
Name: snakeCTF 2025 Quals
Date: 29 Aug., 17:00 UTC — 30 Aug. 2025, 17:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 10 teams will participate
More info: https://ctftime.org/event/2817
Date: 29 Aug., 17:00 UTC — 30 Aug. 2025, 17:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 10 teams will participate
More info: https://ctftime.org/event/2817
ctftime.org
snakeCTF 2025 Quals
SnakeCTF is an online jeopardy-style CTF featuring challenges from many categories, including pwn, web, reversing, cr...
Name: corCTF 2025
Date: 30 Aug., 00:00 UTC — 01 Sept. 2025, 00:00 UTC
Format: Jeopardy
Location: On-line
Weight: 82.00
Notes: 25 teams will participate
More info: https://ctftime.org/event/2763
Date: 30 Aug., 00:00 UTC — 01 Sept. 2025, 00:00 UTC
Format: Jeopardy
Location: On-line
Weight: 82.00
Notes: 25 teams will participate
More info: https://ctftime.org/event/2763
ctftime.org
corCTF 2025
Organized by the Crusaders of Rust (a.k.a. Starrust Crusaders), an American and European security research organizati...
Name: Nullcon Berlin HackIM 2025 CTF
Date: 04 Sept., 10:30 UTC — 05 Sept. 2025, 13:00 UTC
Format: Jeopardy
Location: On-line
Weight: 30.00
Notes: 5 teams will participate
More info: https://ctftime.org/event/2874
Date: 04 Sept., 10:30 UTC — 05 Sept. 2025, 13:00 UTC
Format: Jeopardy
Location: On-line
Weight: 30.00
Notes: 5 teams will participate
More info: https://ctftime.org/event/2874
ctftime.org
Nullcon Berlin HackIM 2025 CTF
ATTENTION: CTF runs from 4th September 2025 08:30 AM UTC (10:30 AM CEST) to 5th September 2025 11:00 AM UTC (01:00 PM...
Name: ImaginaryCTF 2025
Date: 05 Sept., 19:00 UTC — 07 Sept. 2025, 19:00 UTC
Format: Jeopardy
Location: On-line
Weight: 66.02
Notes: 66 teams will participate
More info: https://ctftime.org/event/2799
Date: 05 Sept., 19:00 UTC — 07 Sept. 2025, 19:00 UTC
Format: Jeopardy
Location: On-line
Weight: 66.02
Notes: 66 teams will participate
More info: https://ctftime.org/event/2799
ctftime.org
ImaginaryCTF 2025
ImaginaryCTF 2025 will now take place from September 5-7.
ImaginaryCTF 2025 is a cybersecurity CTF competition run...
ImaginaryCTF 2025 is a cybersecurity CTF competition run...
Name: CRACCON 2025
Date: 06 Sept., 08:00 UTC — 07 Sept. 2025, 08:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 1 teams will participate
More info: https://ctftime.org/event/2879
Date: 06 Sept., 08:00 UTC — 07 Sept. 2025, 08:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 1 teams will participate
More info: https://ctftime.org/event/2879
ctftime.org
CRACCON 2025
This CTF is organized in association with CRACCON 2025. First preliminary round for global participants for CRACCON 2...
Name: ASIS CTF Quals 2025
Date: 06 Sept., 14:00 UTC — 07 Sept. 2025, 14:00 UTC
Format: Jeopardy
Location: On-line
Weight: 96.29
Notes: 49 teams will participate
More info: https://ctftime.org/event/2612
Date: 06 Sept., 14:00 UTC — 07 Sept. 2025, 14:00 UTC
Format: Jeopardy
Location: On-line
Weight: 96.29
Notes: 49 teams will participate
More info: https://ctftime.org/event/2612
ctftime.org
ASIS CTF Quals 2025
Name: BlackHat MEA CTF Qualification 2025
Date: 07 Sept., 10:00 UTC — 08 Sept. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 25.83
Notes: 19 teams will participate
More info: https://ctftime.org/event/2876
Date: 07 Sept., 10:00 UTC — 08 Sept. 2025, 10:00 UTC
Format: Jeopardy
Location: On-line
Weight: 25.83
Notes: 19 teams will participate
More info: https://ctftime.org/event/2876
ctftime.org
BlackHat MEA CTF Qualification 2025
Black Hat MEA in collaboration with Saudi Federation for Cybersecurity, Programming & Drones (SAFCSP) will host a CTF...
Name: WatCTF F25
Date: 09 Sept., 19:00 UTC — 11 Sept. 2025, 19:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 1 teams will participate
More info: https://ctftime.org/event/2854
Date: 09 Sept., 19:00 UTC — 11 Sept. 2025, 19:00 UTC
Format: Jeopardy
Location: On-line
Weight: 0.00
Notes: 1 teams will participate
More info: https://ctftime.org/event/2854
ctftime.org
WatCTF F25
UWaterloo's Cybersecurity Club brings you a jeopardy-style online CTF, open to all!
Primarily aimed at beginner-to...
Primarily aimed at beginner-to...