Breaking Legacy Routers: 5 Zero-Days via Reversing and Hardware Hacking

Danilo Erazo

REcon 2025 · Day 1 · Main Track

End-of-life does not mean end-of-risk. In this talk, independent security researcher Danilo Erazo presents five previously undisclosed zero-day vulnerabilities discovered in legacy fiber optic (ONT) r

AI review

Independent researcher goes hands-dirty on dual-SoC ONT routers nobody else bothered to look at, chains five bugs into full unauthenticated RCE, and actually gets a vendor who said 'end-of-life, not our problem' to ship a patch — that's the job.

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