CVE-2019-15316
High
Description
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.
SeverityHigh
CVSS7.0
Exploit probability—
ProductValvesoftware Steam Client
PublishedAug 21, 2019
First seenAug 21, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| valvesoftware steam_client | v ≤ 2019-08-20 | — |
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