An issue was discovered in Valve Steam Link build 643.
Priority MEDIUM 49Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.04102 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:valvesoftware:steam_link_firmware:*:*:*:*:*:*:*:* | before 644 | Vulnerable | Valvesoftware |
| cpe:2.3:h:valvesoftware:steam_link:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Valvesoftware |
- cpe:2.3:o:valvesoftware:steam_link_firmware:*:*:*:*:*:*:*:* Versions before 644 Vulnerable ·Valvesoftware
- cpe:2.3:h:valvesoftware:steam_link:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Valvesoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-17877
- 2026-10-03 Alias added: GHSA-wjcr-9rvj-672v
References
More Valvesoftware Steam Link Firmware vulnerabilities
- TI-2017-13108 An issue was discovered in Valve Steam Link build 643. CVSS 3.0CRITICAL 9.8
Sources
- CVE-2017-17877 · CVE Program
- CVE-2017-17877 · NVD
- FIRST EPSS
- GHSA-wjcr-9rvj-672v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences