Resource exhaustion in Rockwell Automation 1756-Enbt Module

CVE-2026-84235

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.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

EPSS exploit prediction

EPSS: 0.004 (35.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-84235: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Weakness classification (CWE)

References