CVE-2026-5433 Improper sanitization
An attacker can execute arbitrary commands on the Honeywell Control Network Module via its web interface, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5433?
CVE-2026-5433 is a critical command injection vulnerability in Honeywell International Inc. Control Network Module (CNM), published on 21 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Honeywell Control Network Module (CNM) contains command injection vulnerability in the web interface. An attacker could exploit this vulnerability via command delimiters, potentially resulting in Remote Code Execution (RCE).
Honeywell recommends updating to the most recent version of this product, service or offering [200.1]. The CNM versions affected are from [100.1, 101.1, 110.1, and 110.2].
Weakness: CWE-77
Which versions are affected by CVE-2026-5433?
How do I fix CVE-2026-5433?
No fix has been published for CVE-2026-5433 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-5433 being exploited?
There is no known exploitation of CVE-2026-5433 in the wild and no public exploit code.
Sources
Also known as GHSA-ww6q-r9c5-m444.