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Paper Abstract and Keywords
Presentation 2026-03-17 10:55
Corpus Saving Control Based on Control-Flow Graph Exploration in Fuzzing
Nonoka Muraki, Yuichi Sugiyama, Ryota Shioya (UTokyo) CPSY2025-74 DC2025-146
Abstract (in Japanese) (See Japanese page) 
(in English) Fuzzing is widely used as an automated testing technique to assess software security. It discovers bugs and vulnerabilities by automatically generating inputs and repeatedly executing a program. A representative approach, Coverage-guided Fuzzing (CGF), systematically explores a program’s control-flow graph based on coverage information. In CGF, inputs that reach previously unseen states in the control-flow graph are stored in a corpus as seeds, and the fuzzer repeatedly mutates them to explore neighboring states.
In this study, we assume that seeds that can expand the explored region more widely are more promising, and estimate the promise of each seed based on how thoroughly its input has explored the control-flow graph. Based on this estimate, we propose a method that preferentially retains seeds judged to be promising in the corpus. Our evaluation shows that, compared with AFL++, which is widely used in practice, the proposed method achieves higher coverage in a shorter time on multiple benchmarks.
Keyword (in Japanese) (See Japanese page) 
(in English) Coverage-guided Fuzzing / edge coverage / control-flow graph / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 401, CPSY2025-74, pp. 131-136, March 2026.
Paper # CPSY2025-74 
Date of Issue 2026-03-08 (CPSY, DC) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CPSY2025-74 DC2025-146

Conference Information
Committee DC CPSY IPSJ-SLDM IPSJ-EMB IPSJ-ARC  
Conference Date 2026-03-15 - 2026-03-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Sun-Olive Olive Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ETNET2026 
Paper Information
Registration To CPSY 
Conference Code 2026-03-DC-CPSY-SLDM-EMB-ARC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Corpus Saving Control Based on Control-Flow Graph Exploration in Fuzzing 
Sub Title (in English)  
Keyword(1) Coverage-guided Fuzzing  
Keyword(2) edge coverage  
Keyword(3) control-flow graph  
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1st Author's Name Nonoka Muraki  
1st Author's Affiliation The University of Tokyo (UTokyo)
2nd Author's Name Yuichi Sugiyama  
2nd Author's Affiliation The University of Tokyo (UTokyo)
3rd Author's Name Ryota Shioya  
3rd Author's Affiliation The University of Tokyo (UTokyo)
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Speaker Author-1 
Date Time 2026-03-17 10:55:00 
Presentation Time 20 minutes 
Registration for CPSY 
Paper # CPSY2025-74, DC2025-146 
Volume (vol) vol.125 
Number (no) no.401(CPSY), no.402(DC) 
Page pp.131-136 
#Pages 6 
Date of Issue 2026-03-08 (CPSY, DC) 

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