CVSS 3.0
7.0 highCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2019-15316
Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race condition.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-367, CWE-732
- Published
- Modified
- Record from
- the NVD, synced
Affected
- valvesoftware:steam_client