What is the CVSS score of CVE-2012-6442?

CVE-2012-6442 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 10.3%.

Ethernet Ip Firmware CVE-2012-6442

HIGH

Improper Access Control (CWE-284)

2013-01-24 ics-cert@hq.dhs.gov

Authentication Bypass Rockwell Ethernet Ip Firmware Compactlogix Firmware Flexlogix Firmware Flex I O Ethernet Ip Firmware Micrologix Firmware Compactlogix Controllers Firmware Controllogix Controllers Firmware Controllogix Firmware Guardlogix Controllers Firmware Guardlogix Firmware Softlogix Controllers Firmware Softlogix Firmware Rockwellautomation

7.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-284 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Access control enforcement MITRE ATT&CK 1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 10.27%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.

No patch listed yet 10.3% exploitation probability (EPSS)

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AnalysisAI

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,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 10.3% and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-284. 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 Affected products include: Rockwellautomation Ethernet\/Ip Firmware, Rockwellautomation Compactlogix Firmware, Rockwellautomation Flexlogix Firmware, Rockwellautomation Flex I\/O Ethernet\/Ip Firmware, Rockwellautomation Micrologix Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVSS changed

Jun 03, 2026 - 14:22 NVD

7.8 (HIGH) 7.5 (HIGH)

CVE Published

Jan 24, 2013 - 21:55 cve.org

HIGH 7.5

DescriptionCVE.org

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

Threat Intelligence Overview

EPSS Score

10.3%

Top 7% exploitable

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 10.3%

Patch available No

Active threat No

Deciding rule

HIGH severity + EPSS > 10%

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +10

CVSS: +38

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:o:rockwellautomation:ethernet\/ip_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:compactlogix_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:flexlogix_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:flex_i\/o_ethernet\/ip__firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:micrologix_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:compactlogix_controllers_firmware:19:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:compactlogix_firmware:18:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:controllogix_controllers_firmware:20:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:controllogix_firmware:18:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:guardlogix_controllers_firmware:20:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:guardlogix_firmware:18:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:softlogix_controllers_firmware:19:*:*:*:*:*:*:*

cpe:2.3:o:rockwellautomation:softlogix_firmware:18:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://vuldb.com/vuln/63423 REF http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102 REF http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf REF https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154 REF https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155 REF https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156 REF https://tools.cisco.com/security/center/viewAlert.x?alertId=27862 REF https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03

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