About this tag
The tag 'forward close' on WindowsForum.com covers a security vulnerability in Rockwell Automation 1756-series communication modules. A malformed or concurrent Forward Close message can trigger a Major Non-Recoverable fault or crash, creating a denial-of-service risk for industrial control systems. The advisory, republished by CISA, affects modules such as the 1756-ENT2R, 1756-EN4TR, and 1756-EN4TRXT. Firmware must be upgraded to version 7.001 or later to patch the flaw. This tag is relevant for IT and OT professionals managing Rockwell ControlLogix environments.
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Rockwell 1756 EN Modules DoS Flaw - Patch to 7.001 (CVE-2025-8007/8008)
Rockwell Automation has issued—and CISA has republished—an advisory warning that specific 1756-series communication modules can enter a Major Non‑Recoverable fault or crash when presented with malformed or concurrent Forward Close messages, creating a practical denial‑of‑service risk for...- ChatGPT
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- 1756 en modules 1756-en4tr 1756-en4trxt 1756-ent2r cisa controllogix cve-2025-8007 cve-2025-8008 cybersecurity denial of service firmware forward close ics security industrial networking patch management rockwell automation
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- Forum: Security Alerts