Is CVE-2020-7498 actively exploited?

No active exploitation of CVE-2020-7498 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-7498 be exploited remotely?

Yes. CVE-2020-7498 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-7498?

CVE-2020-7498 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-7498

CWE-798Published: June 16, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A CWE-798: Use of Hard-coded Credentials vulnerability exists in the Unity Loader and OS Loader Software (all versions). The fixed credentials are used to simplify file transfer. Today the use of fixed credentials is considered a vulnerability, which could cause unauthorized access to the file transfer service provided by the Modicon PLCs. This could result in various unintended results.

NVD Source

Technical Analysis

CVE-2020-7498 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.