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Paper Abstract and Keywords
Presentation 2026-10-07 17:30
Towards Determining Validity of Reported Vulnerabilities by Symbolic Execution
Nishi Kosuke (CIST), Satoru Sunahara (HU), Shigeki Hagihara (CIST) NS2026-89
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, with the widespread adoption of generative AI, erroneous vulnerability reports generated by AI have rapidly increased in bug bounty programs, which reward security researchers for discovering vulnerabilities. Consequently, the verification burden on developers and triage teams has worsened, leading major open-source projects such as curl and Node.js to suspend or restrict their bug bounty programs. Existing filtering methods using machine learning or large language models (LLMs) suffer from limitations, as their reliance on probabilistic predictions and susceptibility to hallucinations make it difficult to logically eliminate false positives. This study aims to construct an automated verification approach using formal methods to logically eliminate erroneous vulnerability reports. Focusing on vulnerabilities in open-source software where reachability analysis via symbolic execution is effective, program locations corresponding to the reproduction conditions in the reports are extracted. The existence of execution paths and path constraints required to reach those locations is then logically verified. This framework enables sound verification unaffected by hallucinations, contributing to reducing triage costs and enhancing the sustainability of bug bounty programs.
Keyword (in Japanese) (See Japanese page) 
(in English) bug bounty / formal methods / symbolic execution / vulnerability verification / open-source software (OSS) / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 183, NS2026-89, pp. 21-21, Oct. 2026.
Paper # NS2026-89 
Date of Issue 2026-09-30 (NS) 
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 NS2026-89

Conference Information
Committee NS  
Conference Date 2026-10-07 - 2026-10-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network architecture (5G, Local 5G, Beyond5G, Mobile networks, Ad-hoc and sensor networks, Overlay and P2P networks, Programmable networks, SDN/NFV, IoT, Network slicing), Next generation packet transport (High speed Ethernet, IP over WDM, Multi-service package technology, MPLS), Grid, etc. 
Paper Information
Registration To NS 
Conference Code 2026-10-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Towards Determining Validity of Reported Vulnerabilities by Symbolic Execution 
Sub Title (in English)  
Keyword(1) bug bounty  
Keyword(2) formal methods  
Keyword(3) symbolic execution  
Keyword(4) vulnerability verification  
Keyword(5) open-source software (OSS)  
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1st Author's Name Nishi Kosuke  
1st Author's Affiliation Chitose Institute of Science and Technology (CIST)
2nd Author's Name Satoru Sunahara  
2nd Author's Affiliation Hokkaido University (HU)
3rd Author's Name Shigeki Hagihara  
3rd Author's Affiliation Chitose Institute of Science and Technology (CIST)
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Speaker Author-1 
Date Time 2026-10-07 17:30:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2026-89 
Volume (vol) vol.126 
Number (no) no.183 
Page p.21 
#Pages 1 
Date of Issue 2026-09-30 (NS) 

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