CVE-2018-12086: Debian Linux

High severity, CVSS 7.5. EPSS: 11.8% chance of exploitation in the next 30 days.

Buffer overflow in OPC UA applications allows remote attackers to trigger a stack overflow with carefully structured requests.

Affected products

• Debian Debian Linux: version 9.0 only
• Opcfoundation Unified Architecture-.net-Legacy: up to and including 1.03.342
• Opcfoundation Unified Architecture-Java: up to and including 1.03.343
• Opcfoundation Unified Architecture .net-Standard: up to and including 1.03.352.12
• Opcfoundation Unified Architecture Ansic: up to and including 1.03.340

Published 2018-09-14. Last modified 2026-06-17.