VulnerabilityModified

CVE-2020-5806

An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll.

MEDIUM 5.5EPSS 4.78%

Does this matter?

Lower severity and a low EPSS score (4.78%). Track it; it rarely justifies an emergency change on its own.

Description

An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll. This can be done by sending a specially crafted message to 127.0.0.1:7153. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 4.78% probability · 91th percentile
CISA KEV: Not listed
Weakness: CWE-770
Affected: rockwellautomation/factorytalk linx
Source: vulnreport@tenable.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.