Smart Contract Auditor2025.08 — 2026.04
Hashlock, Remote — EVM smart contract audits across Solidity and Vyper
Security researcher
Songhyun Bae
@bshyuunn
I'm Songhyun Bae, aka bshyuunn or hyuunn. I'm a Cyber Defense student at Korea University and a member of CyKor. My experience includes software vulnerability analysis, bug bounty research, and smart contract auditing. My interests include vulnerability discovery, fuzzing, kernel security, Web3 security, AI for security, and AI agent security.
§1Experience
§2Education
Korea University2024.03 —
B.S. Cyber Defense · Seoul, South Korea
§3Disclosed Bugs
Apple 1
CVE-2025-24184
CoreMedia Playback — Denial of service
Anthropic 1
HackerOne #3795252
Claude Code — High
Toucan 3
Immunefi #40684
Toucan Protocol — Medium
Immunefi #40596
Toucan Protocol — Medium
Immunefi #40497
Toucan Protocol — Low
Open Source 3
CVE-2025-30216
NASA CryptoLib — Heap-based buffer overflow
GHSA-58p5-r2f6-g2cj
Pixar OpenUSD — Use-after-free
CVE-2024-42358
PDFio TTF parser — Denial of service
WordPress Plugin 4
CVE-2024-24714
Icons Font Loader — Arbitrary file upload
CVE-2023-48329
Fast Custom Social Share — Stored XSS
CVE-2023-39924
Simple File List — Stored XSS
CVE-2023-33213
wpView — Stored XSS
Others 5
CVE-2024-45872
Bandiview PSD parser — Heap-based buffer overflow
CVE-2024-45871
Bandiview PSD parser — Denial of service
CVE-2024-45870
Bandiview JXR parser — Denial of service
KVE-2024-0410
SGA ViruChaser — DLL hijacking
KVE-2024-0395
Hauri ViRobot — DLL hijacking
§4Audit Contests2C · 18H · 19M · 1L
1stStrobe SC · HackenProof
1C
2025
1stNeutrl Protocol · Sherlock
1M
2025
3rdCoinbase EIP-7702 Proxy · Cantina
1M
2025
5thRAAC Core · CodeHawks
8H10M
2025
5thFolks Finance Staking · Immunefi
1L
2026
10thENS · Immunefi
1C1H1M
2026
10thInterPol · Cantina
1H2M
2024
§5Awards
10thLakeCTF Finals 25-26 with CyKor
2026
1stCyber Security Hackathon with Boolean
2024
FinalCODEGATE Junior
2023
FinalWACON Junior
2023
FinalWhiteHat Contest Junior
2023
FinalCCE Junior
2023
2ndKorea Code Fair Hackathon
2022
3rde-ICON World Contest
2022
4thKOSPO Web Security Competition
2022
4thK-ICT Data Creator Camp
2022