VULNERABILITY INTELLIGENCE

CVE-2019-5636

CVSS score5.3 MEDIUM
EPSS probability1.43%
CISA KEVNot currently listed
Published2019-11-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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).

Weakness classification

  • CWE-404: Improper Resource Shutdown or Release

Primary references