CVE-2020-5801

7.5 highEPSS 30%

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 30% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE: CWE-755
Published: 2020-12-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

rockwellautomation:factorytalk_linx

References

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

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