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01 Record

CVE-2023-2262

Rockwell Automation Select Logix Communication Modules Vulnerable to Email Object Buffer Overflow

CriticalPUBLISHEDCNA: Rockwell
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

Rockwell Automation Select Logix Communication Modules Vulnerable to Email Object Buffer Overflow

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.29% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 70.0% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-09-20 15:20Z3 YR AGO
Last updated
2024-09-25 15:44Z2 YR AGO
Reserved
2023-04-24
Assigning CNA
Rockwell
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-121Stack-based Buffer OverflowVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
53561822b263330c10177a8371c6a6c76e911605a4e0833c4f383a910a0da38b

05 Affected products

VendorProductVersionsPlatforms
Rockwell Automation1756-EN2T Series A, B, C<=5.008 & 5.028—
Rockwell Automation1756-EN2T Series D<=11.002—
Rockwell Automation1756-EN2TK Series A, B, C<=5.008 & 5.028—
Rockwell Automation1756-EN2TXT Series A, B, C<=5.008 & 5.028—
Rockwell Automation1756-EN2TXT Series D<=11.002—
Rockwell Automation1756-EN2TP Series A<=11.002—
Rockwell Automation1756-EN2TPK Series A<=11.002—
Rockwell Auotmation1756-EN2TPXT Series A<=11.002—
Rockwell Automation1756-EN2TR Series A, B<=5.008 & 5.028—
Rockwell Automation1756-EN2TR Series C<=11.002—
Rockwell Automation1756-EN2TRK Series A, B<=5.008 & 5.028—
Rockwell Automation1756-EN2TRK Series C<=11.002—
Rockwell Automation1756-EN2TRXT Series A, B<=5.008 & 5.028—
Rockwell Automation1756-EN2TRXT Series C<=11.002—
Rockwell Automation1756-EN2F Series A, B<=5.008 & 5.028—
Rockwell Automation1756-EN2F Series C<=11.002—
Rockwell Automation1756-EN2FK Series A, B<=5.008 & 5.028—
Rockwell Automation1756-EN2FK Series C<=11.002—
Rockwell Automation1756-EN3TR Series A<=5.008 & 5.028—
Rockwell Automation1756-EN3TR Series B<=11.003—
Rockwell Automation1756-EN3TRK Series A<=5.008 & 5.028—
Rockwell Automation1756-EN3TRK Series B<=11.002—
rockwellautomation1756-en2fk_series_c_firmware5.008 to 5.028, 0 to 11.0002—

06 References

07 Remediation

Update firmware. Update EN2* ControlLogix communications modules to mitigated firmware. * Restrict traffic to the SMTP port (25), if not needed. * Customers using the EN2/EN3 versions 10.x and higher can disable the email object, if not needed. Instructions can be found in the EtherNet/IP Network Devices User Manual (rockwellautomation.com) https://literature.rockwellautomation.com/idc/groups/literature/documents/um/enet-um006_-en-p.pdf , publication ENET-UM006. * QA43240 - Recommended Security Guidelines from Rockwell Automation https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1085012