VULNERABILITY INTELLIGENCE

CVE-2019-5637

CVSS score7.5 HIGH

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:H

Description

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).

Weakness classification

CWE-369: Divide By Zero

Primary references

cve@rapid7.com — Exploit, Third Party Advisory
cve@rapid7.com — Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory