CVE-2021-3401

CVE-2021-3401 affects Bitcoin Core prior to 0.19.0. The flaw arises when another application unsafely passes the -platformpluginpath argument to bitcoin-qt, which can be triggered by an x-scheme-handler/bitcoin .desktop file or a web browser. The underlying issue is unsafe handling of the platfor...

CVE-2021-31876

CVE-2021-31876 affects Bitcoin Core versions 0.12.0–0.21.1. The issue stems from not properly enforcing the replacement policy in BIP125, where an unconfirmed child with nSequence = 0xff_ff_ff_ff can be treated as replaceable, but the mempool rejects the replacement due to an inadequate PreChecks...

CVE-2017-9230

CVE-2017-9230 is tied to a Bitcoin Proof-of-Work methodology issue: 80-byte block headers with varying 64-byte chunks and identical 16-byte tail, multiple candidate roots ending with the same 4 bytes, and sqrt-number calculations that can affect difficulty and independence of PoW executions. Conn...