Login Request a demo
High severity · published Sep 1, 2026
CVE-2026-84235
Rockwell Automation 1756-ENBT Denial of Service Vulnerability
8.7
CVSS
0.4%
EPSS
No
On KEV
Description
A denial-of-service security issue exists in the affected product. The security issue stems from a crafted CIP packet being sent crashing the module. The device requires a restart to recover.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1M
1756-ENBT Module · Rockwell Automation
All versions · source: vendor
Affected product
1M
1756-ENBT Module
Rockwell Automation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84235
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84235
www.rockwellautomation.com
https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1798.html