Rockwell Automation 1756-EN2, 1756-EN3, and 1756-ENBT
view advisory published 2026-07-16
Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-9653US | — | — | ||
A denial-of-service security issue exists across all the 1756-EN2, EN3, and ENBT communication module due to improper validation of CIP Implicit Connection packets. An attacker on… | ||||
02
references
External citations — patches, advisories, analysis.
- ICS Advisory ICSA-26-197-02 JSONself
- ICSA Advisory ICSA-26-197-02 - Web Versionself
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
03
remediations (3)
- Fixed1756-EN2
1756-EN2: Update to V12.002
- Fixed1756-EN3
Rockwell Automation recommends users take the following actions: 1756-EN3: Update to V12.002
- Fixed1756-ENBT
1756-ENBT: Product is discontinued, fix is unavailable
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