CVE-2017-12119: Ethereum Cpp-Ethereum

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

An exploitable unhandled exception vulnerability exists in multiple APIs of CPP-Ethereum JSON-RPC. Specially crafted JSON requests can cause an unhandled exception resulting in denial of service. An attacker can send malicious JSON to trigger this vulnerability.

Affected products

• Ethereum Cpp-Ethereum: affected versions not specified

Published 2018-01-19. Last modified 2026-06-17.