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SATWEI
Security notice

CVE-2025-46597 - Highly unlikely remote crash on 32-bit systems

Original on bitcoincore.org

Source
Bitcoin Corebitcoincore.org
Originally published
Original length
2 min read
Language
English

SATWEI summary

Blocks over 1GB could overflow a size check on 32-bit Bitcoin Core nodes and crash them on the write to disk, but only as a compact block, and only against a victim running -maxmempool above 3GB with 1GB of transactions inside. Pieter Wuille found CVE-2025-46597, rated Low; capping -maxmempool on 32-bit systems closed it in 29.1 and 30.0.

Tags

  • CVE

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