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Description

A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I/O modules, requiring a manual reset to recover.

PUBLISHED Reserved 2026-01-06 | Published 2026-06-16 | Updated 2026-06-16 | Assigner Rockwell




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-401 – Missing Release of Memory after Effective Lifetime

Product status

Default status
unaffected

2.012 (custom)
affected

References

www.rockwellautomation.com/...dvisories/advisory.SD1775.html

cve.org (CVE-2026-0646)

nvd.nist.gov (CVE-2026-0646)

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