CVE-2019-5636
published 2019-11-21CVE-2019-5636: 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…
PriorityP337high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.43%
69.6th percentile
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).
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| beckhoff | twincat | — | — |
| beckhoff | twincat | — | — |
| beckhoff | twincat_2 | 2304 – 2304 | — |
| beckhoff | twincat_3.1 | 4204.0 – 4204.0 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
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No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdfhttps://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf
2019-11-21
Published