7.5

CVE-2020-5802: rockwellautomation factorytalk_linx

CVSS: 7.5v3.1HighModified
Published 29-12-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-5802 is a high (CVSS 7.5) vulnerability in rockwellautomation factorytalk_linx. EPSS estimates a 44.70% chance of exploitation in the next 30 days, higher than 98.7% of scored vulnerabilities.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
44.70%
0%100%
High · +5.87 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

44.70%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

+5.87 pp

From 38.83% on 21-09-2026

21-09-202621-10-2026
EPSS score
44.70%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Rockwellautomation1 product

1 vendor · 1 product

References

1 links