CVE-2020-15530
An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITY\SYSTEM privileges because some parts of %PROGRAMFILES(X86)%\Steam and/or %COMMONPROGRAMFILES(X86)%\Steam have weak permissions during a critical time window. An attacker can make this time window arbitrarily long by using opportunistic locks.
- Affected products
- Valve Steam Client
- Valvesoftware Steam Client
- = 2.10.91.91
- CVSS 3.1
- 7.8 HIGH
- EPSS
- 0.5% (44th percentile)
- Weakness
- CWE-362
- NVD status
- Modified
- Published
- 2020-07-05
CVE-2020-15530 at NVD
No indexed exploits for CVE-2020-15530 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2020-15530 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.