CVE-2020-9464

Name: CVE-2020-9464
Creator: NVD / NIST
Published: 2020-03-12T14:15:21.863+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.35%

Last modified Jun 17, 2026

CVE-2020-9464 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A Denial-of-Service vulnerability exists in BECKHOFF Ethernet TCP/IP Bus Coupler BK9000. After an attack has occurred, the device's functionality can be restored by rebooting.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

A Denial-of-Service vulnerability exists in BECKHOFF Ethernet TCP/IP Bus Coupler BK9000. After an attack has occurred, the device's functionality can be restored by rebooting.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.35%

67.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Beckhoff	Bk9000 Firmware	All versions

References

https://cert.vde.com/en-us/advisories/vde-2020-005Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2020-005Third Party Advisory

Timeline

Published: Mar 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9464?

A Denial-of-Service vulnerability exists in BECKHOFF Ethernet TCP/IP Bus Coupler BK9000. After an attack has occurred, the device's functionality can be restored by rebooting.

How severe is CVE-2020-9464?

CVE-2020-9464 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9464?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9464?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST