CVE-2024-52919: Bitcoin Core

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Bitcoin Core before 22.0 has a CAddrMan nIdCount integer overflow and resultant assertion failure (and daemon exit) via a flood of addr messages.

Affected products

• Bitcoin Bitcoin Core: before 22.0 (fixed in 22.0)

Published 2024-11-18. Last modified 2026-06-17.