What’s Vulnerable › Vulnerabilities

CVE-2020-20741

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-23 · updated 2026-06-17

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.

Affected products

• Beckhoff Cx9020: 6.02-build_4016.6

References

• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-006.pdf
• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-006.pdf

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