CVE-2017-17877 json
An issue was discovered in Valve Steam Link build 643.
published 2017-12-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9024
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.1%
- EPSS 4.1% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
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.
Patch / fix
- valvesoftware steam_link_firmware 644
Exploit prediction
4.10% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
References
-
blogger.davidmanouchehri.com
/2017/12/steam-link-security-remotely-insecure.html
issue-tracking, third-party-advisory
-
github.com
/ValveSoftware/steamlink-sdk/issues/119
issue-tracking, third-party-advisory
-
github.com
/ValveSoftware/steamlink-sdk#ssh-access
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2017-17877
- NVD CVE-2017-17877
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.