CVE-2021-37194

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-09 · updated 2026-06-17
Weakness: CWE-434

Description

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; from 10.4 before 10.4.1; 10.2 — fixed in 10.3.3.3, 10.4.1

How to fix

Upgrade to a fixed version: Siemens COMOS 10.3.3.3, 10.4.1. Check the vendor advisory for mitigations.

References

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