High severity7.5NVD Advisory· Published Dec 29, 2020· Updated Jun 17, 2026
CVE-2020-5802
CVE-2020-5802
Description
An attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a specially crafted ConfigureItems message to TCP port 4241. This will cause an unhandled exception, resulting in termination of RSLinxNG.exe. Observed in FactoryTalk 6.11. All versions of FactoryTalk Linx are affected.
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Affected products
1Patches
Vulnerability mechanics
References
1- www.tenable.com/security/research/tra-2020-71nvdThird Party Advisory
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