CVE-2008-2474: Abb PCU400

High severity, CVSS 10.0. EPSS: 7.9% chance of exploitation in the next 30 days.

Buffer overflow in x87 before 3.5.5 in ABB Process Communication Unit 400 (PCU400) 4.4 through 4.6 allows remote attackers to execute arbitrary code via a crafted packet using the (1) IEC60870-5-101 or (2) IEC60870-5-104 communication protocol to the X87 web interface.

Affected products

• Abb PCU400: version 4.4 only; version 4.5 only; version 4.6 only

Published 2008-09-29. Last modified 2026-06-16.