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-2021-31876

Removed by vendor...