Skip to main content
View

Vulnerability Assessment

Weakness
CWE
CWE-287
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK

2 techniques across 2 tactics: Defense Evasion, Initial Access

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 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 11.82%.
Exploit ScenarioDerived

A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 11.8% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

The device does not properly authenticate users and the potential exists for a remote user to upload a new firmware image to the Ethernet card, whether it is a corrupt or legitimate firmware image. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 11.8% and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

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.

Sign in to check
Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. The device does not properly authenticate users and the potential exists for a remote user to upload a new firmware image to the Ethernet card, whether it is a corrupt or legitimate firmware image. Successful exploitation of this vulnerability could cause loss of availability, integrity, and confidentiality and a disruption in communications 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 Controllogix Controllers, Rockwellautomation Guardlogix Controllers, Rockwellautomation Micrologix, Rockwellautomation Softlogix Controllers, Rockwellautomation 1756-Enbt.

Know when Compactlogix gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources
Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
High
Integrity
High
Availability
High

Lifecycle Timeline

2
CVSS changed
Jun 03, 2026 - 14:22 NVD
10.0 (CRITICAL) 9.8 (CRITICAL)
CVE Published
Jan 24, 2013 - 21:55 cve.org
CRITICAL 9.8

DescriptionCVE.org

The device does not properly authenticate users and the potential exists for a remote user to upload a new firmware image to the Ethernet card, whether it is a corrupt or legitimate firmware image. Successful exploitation of this vulnerability could cause loss of availability, integrity, and confidentiality and a disruption in communications 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
11.8%
Top 6% 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 CRITICAL
CISA KEV No
Public POC No
EPSS 11.8%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
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

61
Low Medium High Critical
KEV: 0
EPSS: +12
CVSS: +49
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:a:rockwellautomation:controllogix_controllers:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:guardlogix_controllers:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:micrologix:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:micrologix:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:softlogix_controllers:*:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1756-enbt:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1756-eweb:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1768-enbt:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1768-eweb:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:1794-aentr_flex_i\/o_ethernet\/ip_adapter:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:compactlogix:*:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:compactlogix_controllers:*:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:compactlogix_l32e_controller:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:compactlogix_l35e_controller:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:controllogix:*:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:flexlogix_1788-enbt_adapter:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:guardlogix:*:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:softlogix:*:*:*:*:*:*:*:*

More in Compactlogix

View all
CVE-2012-6438 HIGH
7.5 Jan 24

The device does not properly validate the data being sent to the buffer. Rated high severity (CVSS 7.5), this vulnerabil
CVE-2012-6436 HIGH
7.5 Jan 24

The device does not properly validate the data being sent to the buffer. Rated high severity (CVSS 7.5), this vulnerabil
CVE-2012-6435 HIGH
7.5 Jan 24

When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2
CVE-2012-6439 HIGH
8.5 Jan 24

When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2
CVE-2012-6441 MEDIUM
5.0 Jan 24

An information exposure of confidential information results when the device receives a specially crafted CIP packet to P
CVE-2012-6440 MEDIUM
4.8 Jan 24

The Web server password authentication mechanism used by the products is vulnerable to a MitM and Replay attack. Rated m

Same weakness CWE-287 – Improper Authentication

View all
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2020-0688 HIGH POC
8.8
CVE-2023-46805 HIGH POC
8.2
CVE-2023-35078 CRITICAL POC
9.8
CVE-2015-1187 CRITICAL POC
9.8
CVE-2024-7593 CRITICAL POC
9.8
CVE-2017-7921 CRITICAL POC
9.8

Same technique Authentication Bypass

View all
CVE-2015-3306 CRITICAL POC
10.0
CVE-2023-22515 CRITICAL POC
9.8
CVE-2012-4681 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3

References

Advisories & patches
ADVISORY https://vuldb.com/vuln/63418 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://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03

Search Externally

GitHub PoC Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy