Is CVE-2020-12034 actively exploited?

No active exploitation of CVE-2020-12034 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-12034 be exploited remotely?

Partially. CVE-2020-12034 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2020-12034?

CVE-2020-12034 has a CVSS score of 8.2 (HIGH).

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HIGH

CVE-2020-12034

CWE-89Published: May 20, 2020· Updated: Jun 17, 2026

8.2

CVSS v3.1

Official Description

Products that use EDS Subsystem: Version 28.0.1 and prior (FactoryTalk Linx software (Previously called RSLinx Enterprise): Versions 6.00, 6.10, and 6.11, RSLinx Classic: Version 4.11.00 and prior, RSNetWorx software: Version 28.00.00 and prior, Studio 5000 Logix Designer software: Version 32 and prior) is vulnerable.The EDS subsystem does not provide adequate input sanitation, which may allow an attacker to craft specialized EDS files to inject SQL queries and manipulate the database storing the EDS files. This can lead to denial-of-service conditions.

NVD Source

Technical Analysis

CVE-2020-12034 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.2.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.