CVE-2017-16718

MediumCVSS 5.9/10Last modified Jun 17, 2026

Description

Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user configured routes, that can be edited remotely via ADS. This special command supports encrypted authentication with username/password. The encryption uses a fixed key, that could be extracted by an attacker. Precondition of the exploitation of this weakness is network access at the moment a route is added.

Metrics

CVSS 3.0 5.9/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-522CWE-327

Affected software

VendorProductVersions
ICS-CERTBeckhoff TwinCATVersion 3

References

Timeline

Published
Jun 27, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2017-16718: Medium severity, CVSS 5.9 | Vulnix