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TI-2020-04734 Aliases CVE-2020-5806GHSA-3g7c-253j-whp9

Resource allocation without limits in Rockwell FactoryTalk Linx

Priority LOW 32CWE-770Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-770.

Summary

An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll. This can be done by sending a specially crafted message to 127.0.0.1:7153. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

Why it matters now

EPSS 0.04776 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Rockwell FactoryTalk LinxAll versions of FactoryTalk Linx—No fix listedCNA
  • Rockwell FactoryTalk Linx Vendor— Affected All versions of FactoryTalk Linx Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:rockwellautomation:factorytalk_linx:*:*:*:*:*:*:*:*up to 6.11VulnerableRockwell
  • cpe:2.3:a:rockwellautomation:factorytalk_linx:*:*:*:*:*:*:*:* Versions up to 6.11 Vulnerable ·Rockwell

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5806
  2. 2026-10-03 Alias added: GHSA-3g7c-253j-whp9

References

Advisory 1

  • TI-2020-04730 Resource allocation without limits in Rockwell FactoryTalk Linx CVSS 3.1HIGH 7.5
  • TI-2023-13843 Rockwell Automation FactoryTalk Linx Vulnerable to Denial-of-Service and Information Disclosure CVSS 3.1CRITICAL 9.1
  • TI-2020-09660 Improper input validation in FactoryTalk Linx, RSLinx Classic, Connected Components… CVSS 3.1CRITICAL 9.8
  • TI-2020-04729 Improper handling of exceptional conditions in Rockwell FactoryTalk Linx CVSS 3.1HIGH 7.5
  • TI-2020-16577 Heap-based buffer overflow in FactoryTalk Linx CVSS 3.1CRITICAL 9.8
  • TI-2020-09662 Path traversal in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench… CVSS 3.1HIGH 7.5
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences