An issue was discovered in Valve Steam Link build 643
Published Dec 24, 2017
9.8
CRITICALCVSS 3.0
EPSS 4.10%
Description
An issue was discovered in Valve Steam Link build 643. When the SSH daemon is enabled for local development, the device is publicly available via IPv6 TCP port 22 over the internet (with stateless address autoconfiguration) by default, which makes it easier for remote attackers to obtain access by guessing 24 bits of the MAC address and attempting a root login. This can be exploited in conjunction with CVE-2017-17878.
Affected products
No data.
- < 644
Running on/with
- 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:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.10% (0.04102) | 90.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.10% (0.04102) | 89.41th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.34% (0.01341) | 78.21th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.11% (0.04108) | 80.67th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.71% (0.00706) | 80.58th | v3 (v2023.03.01) |
| May 24, 2024 | 0.71% (0.00706) | 80.33th | v3 (v2023.03.01) |
| May 10, 2024 | 0.59% (0.00593) | 78.22th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.50% (0.00502) | 76.14th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.43% (0.00433) | 74.00th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.40% (0.00396) | 72.77th | v3 (v2023.03.01) |
| May 16, 2023 | 0.76% (0.00762) | 78.53th | v3 (v2023.03.01) |
| May 8, 2023 | 0.73% (0.00734) | 77.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.62% (0.00618) | 75.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.05% (0.01046) | 28.66th | v1 |
| Jan 6, 2022 | 1.05% (0.01046) | 28.03th | v1 |
| Sep 1, 2021 | 1.05% (0.01046) | 65.02th | v1 |
| Apr 14, 2021 | 1.05% (0.01046) | 0.00th | v1 |
No CWE recorded.
References (3)
- https://blogger.davidmanouchehri.com/2017/12/steam-link-security-remotely-insecure.html x_refsource_MISCIssue TrackingThird Party Advisory
- https://github.com/ValveSoftware/steamlink-sdk#ssh-access x_refsource_MISCIssue TrackingThird Party Advisory
- https://github.com/ValveSoftware/steamlink-sdk/issues/119 x_refsource_MISCIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://blogger.davidmanouchehri.com/2017/12/steam-link-security-remotely-insecure.html | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://github.com/ValveSoftware/steamlink-sdk#ssh-access | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://github.com/ValveSoftware/steamlink-sdk/issues/119 | x_refsource_MISCIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.