CVE-2013-2293: Bitcoin Bitcoin-Qt

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

The CTransaction::FetchInputs method in bitcoind and Bitcoin-Qt before 0.8.0rc1 copies transactions from disk to memory without incrementally checking for spent prevouts, which allows remote attackers to cause a denial of service (disk I/O consumption) via a Bitcoin transaction with many inputs corresponding to many different parts of the stored block chain.

Affected products

• Bitcoin Bitcoin-Qt: version 0.4 only; version 0.4.8 only; version 0.5.0 only; version 0.5.0.4 only; version 0.5.1 only; version 0.5.3.0 only; …
• Bitcoin Bitcoin Core: any version; up to and including 0.7.2; version 0.3.4 only; version 0.3.5 only; version 0.3.8 only; version 0.3.10 only; …
• Bitcoin Bitcoind: version 0.4.4 only; version 0.5.7 only; version 0.6.0.0 only; version 0.6.0.10 only; version 0.6.3 only; version 0.6.4 only; …

Published 2013-03-12. Last modified 2026-06-16.