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CVE-2012-6442— Rockwell Automation ControlLogix PLC Improper Access Control

Quick assessment

Affected

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

Exploitation

High exploitation probability; assess promptly

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rockwell Automation ControlLogix提供工业自动化控制和信息产品。 Rockwell Automation ControlLogix在处理某些来自未授权或意外源的有效CIP报文时存在安全漏洞，当向端口2222/TCP，Port 2222/UDP，Port 44818/TCP，Port 44818/UDP发送特制的CIP报文，重置产品时，此漏洞可造成CPU拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 35.55% · P98 Updated Jun 13, 2026

Possible ATT&CK Techniques 2 AI

T1052 · Exfiltration Over Physical Medium T1029 · Scheduled Transfer

Affected Version Matrix 9

Vendor	Product	Version Range	Status
Rockwell Automation	1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules	`All`	affected
Rockwell Automation	1788-ENBT FLEXLogix adapter	`All`	affected
Rockwell Automation	1794-AENTR FLEX I/O EtherNet/IP adapter	`All`	affected
Rockwell Automation	CompactLogix and SoftLogix controllers	`≤ 19`	affected
Rockwell Automation	CompactLogix L32E and L35E controllers	`All`	affected
Rockwell Automation	ControlLogix and GuardLogix controllers	`≤ 20`	affected
Rockwell Automation	ControlLogix, CompactLogix, GuardLogix, and SoftLogix	`≤ 18`	affected
Rockwell Automation	MicroLogix	`1100`	affected
		`1400`	affected

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I. Basic Information for CVE-2012-6442

Vulnerability Information

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Vulnerability Title

Rockwell Automation ControlLogix PLC Improper Access Control

Source: CVE Program / CVE List V5

Vulnerability Description

When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that instructs the product to reset, a DoS can occur. This situation could cause loss of availability and a disruption of communication with other connected devices. 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

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

访问控制不恰当

Source: CVE Program / CVE List V5

Vulnerability Title

Rockwell Automation ControlLogix 拒绝服务漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE
Rockwell Automation	1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules	All	-
Rockwell Automation	CompactLogix L32E and L35E controllers	All	-
Rockwell Automation	1788-ENBT FLEXLogix adapter	All	-
Rockwell Automation	1794-AENTR FLEX I/O EtherNet/IP adapter	All	-
Rockwell Automation	ControlLogix, CompactLogix, GuardLogix, and SoftLogix	0 ~ 18	-
Rockwell Automation	CompactLogix and SoftLogix controllers	0 ~ 19	-
Rockwell Automation	ControlLogix and GuardLogix controllers	0 ~ 20	-
Rockwell Automation	MicroLogix	1100	-

II. Public POCs for CVE-2012-6442

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2012-6442

请登录查看更多情报信息。

Vendor Advisories for CVE-2012-6442 (1)

🔗 http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf x_refsource_MISC

Other References for CVE-2012-6442 (4)

https://www.cve.org/CVERecord?id=CVE-2012-6442

Same Patch Batch · Rockwell Automation · 2013-01-24 · 8 CVEs total

CVE-2012-6435		Rockwell Automation ControlLogix PLC Improper Access Control
CVE-2012-6436		Rockwell Automation ControlLogix PLC Improper Input Validation
CVE-2012-6437		Rockwell Automation ControlLogix PLC Improper Authentication
CVE-2012-6438		Rockwell Automation ControlLogix PLC Improper Input Validation
CVE-2012-6439		Rockwell Automation ControlLogix PLC Improper Access Control
CVE-2012-6440		Rockwell Automation ControlLogix PLC Improper Input Validation
CVE-2012-6441		Rockwell Automation ControlLogix PLC Information Exposure

IV. Related Vulnerabilities

Same product: 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules

Same vendor: Rockwell Automation

Same weakness: CWE-284

V. Comments for CVE-2012-6442

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2012-6442— Rockwell Automation ControlLogix PLC Improper Access Control

Quick assessment

Possible ATT&CK Techniques 2 AI

Affected Version Matrix 9

I. Basic Information for CVE-2012-6442

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2012-6442

III. Intelligence Information for CVE-2012-6442

Vendor Advisories for CVE-2012-6442 (1)

Other References for CVE-2012-6442 (4)

Same Patch Batch · Rockwell Automation · 2013-01-24 · 8 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2012-6442

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