CVE-2021-37196: Siemens Comos

Medium severity, CVSS 6.5. 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 V10.3 (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 unpacks specially crafted archive files to relative paths. This vulnerability could allow an attacker to store files in any folder accessible by the COMOS Web webservice.

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.