CVE-2014-1699: Siemens SIMATIC Wincc Open Architecture

Medium severity, CVSS 5.0. EPSS: 2.1% chance of exploitation in the next 30 days.

Siemens SIMATIC WinCC OA before 3.12 P002 January allows remote attackers to cause a denial of service (monitoring-service outage) via malformed HTTP requests to port 4999.

Affected products

• Siemens SIMATIC Wincc Open Architecture: up to and including 3.12

Published 2014-02-07. Last modified 2026-06-17.