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Factorytalk Linx CVE-2023-29464

CRITICAL
Improper Input Validation (CWE-20)
2023-10-13 PSIRT@rockwellautomation.com
9.1
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 9.1 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 9.6% exploitation probability (EPSS)

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AnalysisAI

FactoryTalk Linx, in the Rockwell Automation PanelView Plus, allows an unauthenticated threat actor to read data from memory via crafted malicious packets. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. FactoryTalk Linx, in the Rockwell Automation PanelView Plus, allows an unauthenticated threat actor to read data from memory via crafted malicious packets. Sending a size larger than the buffer size results in leakage of data from memory resulting in an information disclosure. If the size is large enough, it causes communications over the common industrial protocol to become unresponsive to any type of packet, resulting in a denial-of-service to FactoryTalk Linx over the common industrial protocol. Affected products include: Rockwellautomation Factorytalk Linx.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.1 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
High
Integrity
None
Availability
High

DescriptionNVD

FactoryTalk Linx, in the Rockwell Automation PanelView Plus, allows an unauthenticated threat actor to read data from memory via crafted malicious packets. Sending a size larger than the buffer size results in leakage of data from memory resulting in an information disclosure. If the size is large enough, it causes communications over the common industrial protocol to become unresponsive to any type of packet, resulting in a denial-of-service to FactoryTalk Linx over the common industrial protocol.

Threat Intelligence Overview

EPSS Score
9.6%
Top 5% exploitable
Data Quality
2 sources
Confidence: Low

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 9.6%
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

56
Low Medium High Critical
KEV: 0
EPSS: +10
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:rockwellautomation:factorytalk_linx:6.20:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:factorytalk_linx:6.30:*:*:*:*:*:*:*
CVE-2020-27251 CRITICAL
9.8 Nov 26

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. Rated critical severity (CVSS 9.8),

CVE-2020-12001 CRITICAL
9.8 Jun 15

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Versio

CVE-2025-9068 HIGH
8.5 Oct 14

Local privilege escalation in Rockwell Automation's FactoryTalk Linx Driver Package (x64 Microsoft Installer) allows an

CVE-2025-9067 HIGH
8.5 Oct 14

Local privilege escalation in Rockwell Automation FactoryTalk Linx allows an authenticated Windows user to obtain SYSTEM

CVE-2020-11999 HIGH
8.1 Jun 15

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Versio

CVE-2020-5802 HIGH
7.5 Dec 29

An attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a special

CVE-2020-5801 HIGH
7.5 Dec 29

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled ex

CVE-2020-27255 HIGH
7.5 Nov 26

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. Rated high severity (CVSS 7.5), thi

CVE-2020-27253 HIGH
7.5 Nov 26

A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. Rated high severity (CVSS

CVE-2020-12005 HIGH
7.5 Jun 15

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Versio

CVE-2020-12003 HIGH
7.5 Jun 15

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Versio

CVE-2020-5806 MEDIUM
5.5 Dec 29

An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseL

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