CVE-2014-0777: Ioserver Opc Server

High severity, CVSS 7.8. EPSS: 2.4% chance of exploitation in the next 30 days.

The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.

Affected products

• Ioserver Ioserver Opc Server: affected versions not specified
• Ioserver Opc Drivers: up to and including 1.0.20

Published 2014-04-11. Last modified 2026-06-17.