Hidden functionality in Schneider Electric Triconex TriStation

Published: 2020-07-24
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-7485
Exploitation vector Local
Public exploit N/A
Vulnerable software
Triconex TriStation 1131
Server applications / SCADA systems

Vendor Schneider Electric

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Hidden functionality

EUVDB-ID: #VU31812

Risk: Low


CVE-ID: CVE-2020-7485

CWE-ID: CWE-912 - Hidden Functionality (Backdoor)

Exploit availability: No


The vulnerability allows a local user to compromise vulnerable system

The vulnerability exists due to hidden functionality (backdoor) is present in software, related to a legacy support account. A local user can use this functionality to inappropriate access to the TriStation 1131 project file.


Install updates from vendor's website.

Vulnerable software versions

Triconex TriStation 1131: 4.9.0 - 4.10.0

CPE2.3 External links


Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?