What’s Vulnerable › Vulnerabilities

CVE-2020-5806

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-29 · updated 2026-06-17
• Weakness: CWE-770

Description

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.

Affected products

• Rockwell Automation FactoryTalk Linx: through 6.11

References

• https://www.tenable.com/security/research/tra-2020-71
• https://www.tenable.com/security/research/tra-2020-71

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