CVE-2019-5636CWE-404

Beckhoff TwinCAT Discovery Service Denial of Service

Medium · published November 21, 2019

CVSS v3.1
5.3
EPSS
1%
Percentile
72.8
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.01427 · 72.8th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2019-11-21T19:16Z
EPSS history
Timeline
  • 21 NOV 19:16Z
    Beckhoff TwinCAT Discovery Service Denial of Service
    cvelistv5