CVE-2021-37194: Siemens Comos

High severity, CVSS 7.5. EPSS: 0.8% 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 allows to upload and store arbitrary files at the webserver. This could allow an attacker to store malicious files.

Affected products

• Siemens Comos: from 10.3, before 10.3.3.3 (fixed in 10.3.3.3); from 10.4, before 10.4.1 (fixed in 10.4.1); version 10.2 only

Published 2022-02-09. Last modified 2026-06-17.