Kyungmin Inn

Kyungmin Inn

I study how software breaks at the memory level: heap corruption in network daemons, Windows kernel drivers, and the firmware inside routers and door locks. Computer Engineering at the University of Michigan.

Research

All research
  1. CVE-2023-421152026

    Exim SMTP AUTH out-of-bounds write

    Unauthenticated out-of-bounds write in the SMTP AUTH handler; reproduced the bug and the path to code execution.

    1-day reproduction
  2. CVE-2025-554232026

    ipTIME UPnP OS command injection

    Command injection in the UPnP service; root-cause analysis and reproduction on real firmware.

    1-day reproduction
  3. CVE-2026-20052026

    PostgreSQL pgcrypto heap overflow

    Integer overflow in PGP session-key parsing leading to a heap overflow; built a working exploit from the advisory.

    1-day reproduction

Challenges I wrote

All

Nothing published yet.

Writing

All

Nothing published yet.