Is CVE-2020-20741 actively exploited?

No active exploitation of CVE-2020-20741 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-20741 be exploited remotely?

Yes. CVE-2020-20741 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-20741?

CVE-2020-20741 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-20741

CRITICAL

CVE-2020-20741

NVD-CWE-OtherPublished: July 23, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote Display Tool" as it does not close the incoming connection on the Windows CE side if the credentials are incorrect.

NVD Source

Technical Analysis

CVE-2020-20741 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.