overflow-bug

Value overflow incident — 184 billion BTC created in Block 74638

An integer overflow bug (CVE-2010-5139) was exploited to create 184,467,440,737.09551616 BTC in a single transaction in Block 74638. Satoshi Nakamoto published a fix within 5 hours, and the corrected chain overtook the invalid chain within 15 hours — the most serious crisis in Bitcoin's history.