Ossi Väänänen
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolOssi Väänänen is a lead developer with a decade of experience driving secure software delivery at Nelonen Media and serving as PSIRT team lead and security advisor for Sanoma Media Finland. He blends hands-on engineering with security stewardship, contributing to open-source vulnerability tooling such as the Intel CVE Binary Tool where he added an OpenSSH checker and improved core Python reliability. Based in Helsinki, he holds an M.Sc. in Electrical and Software Engineering from Helsinki University of Technology and applies that systems-thinking background to practical security problems. Colleagues rely on him for pragmatic vulnerability detection, cross-team incident coordination, and shipping tooling that closes the gap between research and production. Known for quietly fixing brittle edge cases, he improves both developer workflows and organizational resilience.
10 years of coding experience
IB, Economics, Mathematics, Physics, IB, Economics, Mathematics, Physics at International BaccalaureateM.Sc. (E.E.), Electrical Engineering, Software Engineering, M.Sc. (E.E.), Electrical Engineering, Software Engineering at Helsinki University of Technology
Norwegian, German, Dutch, Spanish, Swedish, Finnish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
openssh10
vulnerabilities10
cve10
python10
security10
regex8
sbom5
Programming languages (14)
Github contributions (5)
intel/cve-bin-tool
Oct 2019 - Oct 2019
The CVE Binary Tool helps you determine if your system includes known vulnerabilities. You can scan binaries for over 350 common, vulnerable components (openssl, libpng, libxml2, expat and others), or if you know the components used, you can get a list of known vulnerabilities associated with an SBOM or a list of components and versions.
Role in this project:
Security Engineer
Security EngineerContributions:5 commits, 2 PRs, 1 comment in 1 day
Contributions summary:Ossi's primary contributions involved enhancing the CVE Binary Tool by adding a new checker for OpenSSH. This includes implementing version detection logic and identifying the vulnerable modules. The user also fixed string formatting issues within the core Python codebase of the tool, improving its reliability. Furthermore, the user added a checker for openssh and made small fixes to improve the software's functionality.
scanpythonsystem-toolslibxml2bugbounty
rekonnain/asscan
Dec 2019 - Aug 2022
Automated Subnet Scanner
Contributions:100 commits, 26 PRs, 90 pushes in 2 years 8 months
scannerpythonsecurity-toolsbugbountysecurity
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