CVE-2019-14743 json
In Valve Steam Client for Windows through 2019-08-07, HKLM\SOFTWARE\Wow6432Node\Valve\Steam has explicit "Full control" for the Users group…
published 2019-08-07 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5883
- cvss
- 6.6
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
In Valve Steam Client for Windows through 2019-08-07, HKLM\SOFTWARE\Wow6432Node\Valve\Steam has explicit "Full control" for the Users group, which allows local users to gain NT AUTHORITY\SYSTEM access.
Patch / fix
- amonitoring.ru/article/steamclient-0day/ advisory
- habr.com/ru/company/pm/blog/462479/ advisory
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- amonitoring.ru https://amonitoring.ru/article/steamclient-0day/ referenced PoC, tagged "exploit" by a source, unverified
- habr.com https://habr.com/ru/company/pm/blog/462479/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.6 | CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
amonitoring.ru
/article/steamclient-0day/
exploit, patch, third-party-advisory
-
habr.com
/ru/company/pm/blog/462479/
exploit, patch, third-party-advisory
- github.com /alexanderbittner/steam-privesc/
Sources
- CVE List CVE-2019-14743
- NVD CVE-2019-14743
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