Critical severity · published May 21, 2026
CVE-2026-5433
Improper sanitization
9.1
CVSS
1%
EPSS
No
On KEV
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].
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CN
Control Network Module (CNM) · Honeywell International Inc.
100.1 through 110.2 · source: vendor
Affected product
CN
Control Network Module (CNM)
Honeywell International Inc.
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5433
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5433
www.honeywell.com
https://www.honeywell.com/us/en/product-security
More from Control Network Module (CNM)
5.9
CVE-2026-5434
Improper storage of sensitive information