CVE-2026-0646Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
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It affects Rockwell Automation FLEX I/O EtherNet/IP Adapters. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-401
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Rockwell
- NVD analysis
- Awaiting Analysis
- Record last updated
- Jun 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Rockwell Automation FLEX I/O EtherNet/IP Adapters rockwell_automation:flex_i_o_ethernet_ip_adapters (from the name) | 2.012 | CNA record |
References
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1775.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.