What is CVE-2020-20741?

CVE-2020-20741 is a critical-severity vulnerability in Beckhoff Cx9020. CVSS score: 9.8/10. Published 2021-07-23.

How severe is CVE-2020-20741?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Beckhoff Cx9020

CVE-2020-20741

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.

EPSS: 0.016 (72.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Beckhoff Cx9020 — versions 6.02
N/a — versions n/a

References

cve@mitre.org (Patch, x_refsource_MISC, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2020-20741?: CVE-2020-20741 is a critical-severity vulnerability in Beckhoff Cx9020. CVSS score: 9.8/10. Published 2021-07-23.
How severe is CVE-2020-20741?: Critical severity. CVSS v3 base score is 9.8 out of 10.