CVE-2011-4447: Bitcoin Core

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

The "encrypt wallet" feature in wxBitcoin and bitcoind 0.4.x before 0.4.1, and 0.5.0rc, does not properly interact with the deletion functionality of BSDDB, which allows context-dependent attackers to obtain unencrypted private keys from Bitcoin wallet files by bypassing the BSDDB interface and reading entries that are marked for deletion.

Affected products

• Bitcoin Bitcoin Core: version 0.4.0 only; version 0.4.1 only; version 0.5.0 only
• Bitcoin Wxbitcoin: version 0.4.0 only; version 0.4.1 only; version 0.5.0 only

Published 2012-08-06. Last modified 2026-06-16.