CVE-2024-35202: Bitcoin Core

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Bitcoin Core before 25.0 allows remote attackers to cause a denial of service (blocktxn message-handling assertion and node exit) by including transactions in a blocktxn message that are not committed to in a block's merkle root. FillBlock can be called twice for one PartiallyDownloadedBlock instance.

Affected products

• Bitcoin Bitcoin Core: before 25.0 (fixed in 25.0)

Published 2024-10-10. Last modified 2026-06-17.