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Vulnerability record · CVE-2023-2262 · published 20 September 2023

CVE-2023-2262: Rockwellautomation 1756-en2t series a firmware stack-based buffer overflow vulnerability

Rockwellautomation · 1756 En2t Series A Firmware

A buffer overflow vulnerability exists in the Rockwell Automation select 1756-EN* communication devices. If exploited, a threat actor could potentially leverage this vulnerability to perform a remote code execution. To exploit this vulnerability, a threat actor would have to send a maliciously crafted CIP request to device.

9.8 CVSS 3.1 Critical EPSS 1.3% · top 30.9% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
33Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A buffer overflow vulnerability exists in the Rockwell Automation select 1756-EN* communication devices. If exploited, a threat actor could potentially leverage this vulnerability to perform a remote code execution. To exploit this vulnerability, a threat actor would have to send a maliciously crafted CIP request to device.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

33 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140786 Permissions RequiredVendor Advisory
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140786 Permissions RequiredVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-2262), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.