What’s Vulnerable › Vulnerabilities

CVE-2020-5801

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 29.7% 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-755

Description

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. 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

Get alerted when CVE-2020-5801 or the next vulnerability affects your stack