Beckhoff TwinCAT 3 supports communication over ADS
Published Jun 27, 2018
5.9
MEDIUMCVSS 3.0
EPSS 0.42%
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.
Affected products
-
- Version Version 3StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Ics-Cert | Beckhoff TwinCAT | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00423) | 34.34th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.42% (0.00423) | 36.28th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00107) | 43.84th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.11% (0.00107) | 43.71th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00107) | 41.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf x_refsource_MISCMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2017-002.pdf | x_refsource_MISCMitigationVendor Advisory |
Change history (0)
No recorded changes yet.