CVE-2019-14743
** DISPUTED ** In Valve Steam Client for Windows through 2019-08-07, HKLM\SOFTWARE\Wow6432Node...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2019-14743- CVSS 3.0
- 6.6 Medium
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-732
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-14743- Updated
- 2026-11-02
EUVDEUVD-2019-5883 No score
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.
- Record
EUVD-2019-5883- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-377c-pvc8-rpq3 No score
** DISPUTED ** In Valve Steam Client for Windows through 2019-08-07, HKLM\SOFTWARE\Wow6432Node...
** DISPUTED ** 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. NOTE: the vendor disputes the significance of this finding; the discoverer was reportedly told that the Steam threat model excludes "Attacks that require physical access to the user's device" and "Attacks that require the ability to drop files in arbitrary locations on the user's filesystem" (which might apply to the attacker's ability to create links under HKLM\SOFTWARE\Wow6432Node\Valve\Steam\Apps).
- Record
GHSA-377c-pvc8-rpq3- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-14743 is a medium vulnerability (CVSS 6.6) in Valvesoftware Steam Client, published August 7, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 49th percentile. No source names a fixed version.