CVE-2019-5637 describes a denial-of-service vulnerability in Beckhoff TwinCAT 2 (version 2304 and prior) and TwinCAT 3.1 (version 4204.0 and prior) when configured with the Profinet driver. An unauthenticated attacker can trigger a controller DoS by sending a specially crafted UDP packet to the device. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog. Community discussion and media coverage are minimal, suggesting limited public attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.1.4022.30CPE matchmatch criteria | cpe:2.3:o:beckhoff:twincat:3.1.4022.30:*:*:*:*:*:*:* | ||
3.1.4022.29CPE matchmatch criteria | cpe:2.3:o:beckhoff:twincat:3.1.4022.29:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.