CVE-2025-46597: Bitcoin Core

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Bitcoin Core 0.13.0 through 29.x has an integer overflow.

Affected products

• Bitcoin Bitcoin Core: from 0.13.0, before 0.30.0 (fixed in 0.30.0)

Published 2026-03-20. Last modified 2026-06-17.