CVE-2019-5636

Medium

Description

When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

SeverityMedium
CVSS5.3
Exploit probability—
ProductBeckhoff Twincat
PublishedNov 21, 2019
First seenNov 21, 2019
Weakness typeCWE-404CWE-404

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
beckhoff twincat2.0, 3.1—

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