CVE-2024-52912: Bitcoin Core

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Bitcoin Core before 0.21.0 allows a network split that is resultant from an integer overflow (calculating the time offset for newly connecting peers) and an abs64 logic bug.

Affected products

• Bitcoin Bitcoin Core: before 0.21.0 (fixed in 0.21.0)

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