CVE-2020-5802

Published: Dec 29, 2020Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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 (1)

Products: Rockwellautomation: Factorytalk Linx

Rockwellautomation

1 product

Factorytalk Linx

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Rockwellautomation Factorytalk Linx	Up to 6.11

Related CWEs

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (2)

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

Source: vulnreport@tenable.com

Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.