What is the severity of CVE-2019-5637?

CVE-2019-5637 has a severity rating that indicates it can lead to a denial of service condition.

How do I fix CVE-2019-5637?

To fix CVE-2019-5637, update to Beckhoff TwinCAT versions later than 3.1.4022.30 or 3.1.4022.29.

What software is affected by CVE-2019-5637?

CVE-2019-5637 affects Beckhoff TwinCAT 2 version 2304 and TwinCAT 3.1 versions prior to 4204.0.

What kind of attack is associated with CVE-2019-5637?

CVE-2019-5637 is associated with a denial of service attack that occurs through malformed UDP packets.

Is CVE-2019-5637 a local or remote vulnerability?

CVE-2019-5637 is a remote vulnerability, as it requires sending a packet to the device over the network.

Vulnerability/
CVE-2019-5637

high

7.5

CWE

369

21/11/2019

17/9/2024

CVE-2019-5637: Beckhoff TwinCAT Profinet Driver Divide-by-Zero Denial of Service

First published: Thu Nov 21 2019(Updated: )

When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

Credit: cve@rapid7.con

Affected Software	Affected Version	How to fix
Beckhoff TwinCAT Extended Automation Runtime	=3.1.4022.30
Beckhoff TwinCAT Cx2030
Beckhoff TwinCAT Cx5140
Beckhoff TwinCAT Extended Automation Runtime	=3.1.4022.29

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2019-5637?
CVE-2019-5637 has a severity rating that indicates it can lead to a denial of service condition.
How do I fix CVE-2019-5637?
To fix CVE-2019-5637, update to Beckhoff TwinCAT versions later than 3.1.4022.30 or 3.1.4022.29.
What software is affected by CVE-2019-5637?
CVE-2019-5637 affects Beckhoff TwinCAT 2 version 2304 and TwinCAT 3.1 versions prior to 4204.0.
What kind of attack is associated with CVE-2019-5637?
CVE-2019-5637 is associated with a denial of service attack that occurs through malformed UDP packets.
Is CVE-2019-5637 a local or remote vulnerability?
CVE-2019-5637 is a remote vulnerability, as it requires sending a packet to the device over the network.

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canonical/beckhoff twincat cx5140
version/beckhoff twincat extended automation runtime/3.1.4022.29

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