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CVE-2012-6441

Rockwell Automation ControlLogix PLC Information Exposure

CVSS 2.0 Medium 5.0

AV:N/AC:L/Au:N/C:P/I:N/A:N

Description

An information exposure of confidential information results when the device receives a specially crafted CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP. Successful exploitation of this vulnerability could cause loss of confidentiality. Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400

Official description from the CVE record, published by icscert. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org

Key data

CVSS 2.0 Medium 5.0

Score published by icscert in the CVE record.

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access vector: Network

    The vulnerable component can be reached over a network, possibly from the Internet.

  • Access complexity: Low

    Specialized access conditions do not exist: the attack needs no special circumstances.

  • Authentication: None

    No authentication is needed.

  • Confidentiality impact: Partial

    Some data can be read.

  • Integrity impact: None

    No effect on the trustworthiness of data.

  • Availability impact: None

    No effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.
Score
0.57148 (57.1% probability)
Percentile
99.1%
Scores of
Nov 10, 2026
Model
v2026.06.15

Weakness (CWE)

CWE catalog version 5.0.
CWE names: Copyright © 2006-2026, The MITRE Corporation. See /security/cve/legal for the CWE license.
  • CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Affected products

Products listed in the CVE record, as the CNA published them.

  • Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules

    • affected: All

  • Rockwell Automation CompactLogix L32E and L35E controllers

    • affected: All

  • Rockwell Automation 1788-ENBT FLEXLogix adapter

    • affected: All

  • Rockwell Automation 1794-AENTR FLEX I/O EtherNet/IP adapter

    • affected: All

  • Rockwell Automation ControlLogix, CompactLogix, GuardLogix, and SoftLogix

    • affected: up to 18

  • Rockwell Automation CompactLogix and SoftLogix controllers

    • affected: up to 19

  • Rockwell Automation ControlLogix and GuardLogix controllers

    • affected: up to 20

  • Rockwell Automation MicroLogix

    • affected: 1100
    • affected: 1400

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

Timeline

  1. ID reserved
  2. Record published
  3. Record last updated

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:45 UTC. Sources and licenses