CVE-2021-37198: Siemens Comos

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 only if web components are used), COMOS V10.4 (All versions < V10.4.1 only if web components are used). The COMOS Web component of COMOS uses a flawed implementation of CSRF prevention. An attacker could exploit this vulnerability to perform cross-site request forgery attacks.

Affected products

• Siemens Comos: up to and including 10.2; from 10.3, before 10.3.3.3 (fixed in 10.3.3.3); version 10.4 only

Published 2022-01-11. Last modified 2026-06-17.