# CVE-2026-5433: Honeywell Control Network Module command injection in web interface

Source: https://junglewise.ai/threats/cve-2026-5433-honeywell-control-network-module-command-injection-in-web  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-21. Updated: 2026-05-21  
License: CC BY 4.0 with a link back

CVE-2026-5433 · Severity: critical · CVSS 9.1 · Published 2026-05-21

The Honeywell Control Network Module (CNM), which manages industrial communication networks, contains a security flaw in its web management interface. An attacker with administrative access could use this vulnerability to run unauthorized commands on the system. This could lead to a complete takeover of the module, potentially disrupting industrial operations or compromising sensitive infrastructure data.

Vendors: [Honeywell](https://junglewise.ai/threats/vendors/honeywell).

## Quick answers

**Is CVE-2026-5433 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-5433 being exploited in the wild.

**How severe is CVE-2026-5433?** Critical severity, with a CVSS score of 9.1, published 21 May 2026.

**Which products and versions are affected?** Honeywell Control Network Module (CNM).

**Is there a fix for CVE-2026-5433?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-5433 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-5433?** Check whether you run Honeywell Control Network Module. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A command injection vulnerability exists in the web interface of the Honeywell Control Network Module (CNM). The flaw is rooted in improper sanitization of input containing command delimiters. An attacker with high privileges (PR:H) can exploit this over the network to execute arbitrary commands on the underlying operating system. Successful exploitation results in Remote Code Execution (RCE) with a scope change (S:C), indicating the potential to impact components beyond the web interface itself.

## Affected products

- Honeywell Control Network Module (CNM)

## Timeline

- 2026-05-21: disclosed
- 2026-05-21: advisory

## References

- [https://process.honeywell.com/](https://process.honeywell.com/)

## Related threats

- [Honeywell Control Network Module sensitive information disclosure](https://junglewise.ai/threats/cve-2026-5434-honeywell-control-network-module-sensitive-information-disclosure)