{"id":"CVE-2017-16718","aliases":["EUVD-2017-7902","GHSA-wx26-fm45-hvxc"],"status":"published","title":"Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation...","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.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00423,"percentile":0.36918,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-327","CWE-522"],"published":"2018-06-27T19:00:00Z","modified":"2026-06-17T01:09:42Z","products":[{"vendor":"beckhoff","product":"twincat"},{"vendor":"ics-cert","product":"beckhoff twincat"}],"references":[{"url":"https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf","tags":["x_refsource_MISC","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16718"},{"url":"https://github.com/advisories/GHSA-wx26-fm45-hvxc"}],"sources":{"cve":[{"id":"CVE-2017-16718","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.","status":"published","published":"2018-06-27T19:00:00Z","modified":"2024-09-16T17:28:00.754Z","cwes":["CWE-522"],"updated_at":"2026-11-02T14:33:21.453505Z"}],"euvd":[{"id":"EUVD-2017-7902","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.","status":"published","published":"2018-06-27T19:00:00Z","modified":"2024-09-16T17:28:00Z","updated_at":"2026-11-03T00:55:41.925187Z"}],"ghsa":[{"id":"GHSA-wx26-fm45-hvxc","title":"Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation...","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.","status":"published","published":"2022-05-13T01:37:22Z","modified":"2023-02-01T05:08:44Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:50:51.059157Z"}],"nvd":[{"id":"CVE-2017-16718","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.","status":"published","published":"2018-06-27T19:29:00.233Z","modified":"2026-06-17T01:09:42.487Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-522","CWE-327"],"updated_at":"2026-11-02T14:04:18.679411Z"}]}}