Vulnerability · Published Dec 29, 2020 · Assigned by tenable

CVE-2020-5802

High 7.5

In plain English

A high-severity security flaw in Rockwell FactoryTalk Linx. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 44.7% (higher than 99% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)44.7%top 1.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	Rockwell FactoryTalk Linx	All versions of FactoryTalk Linx

References

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