CVE-2010-5138: Bitcoin Core

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

wxBitcoin and bitcoind 0.3.x allow remote attackers to cause a denial of service (electricity consumption) via a Bitcoin transaction containing multiple OP_CHECKSIG script opcodes.

Affected products

• Bitcoin Bitcoin Core: version 0.3.4 only; version 0.3.5 only
• Bitcoin Wxbitcoin: version 0.3.4 only; version 0.3.5 only

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