CVE-2015-7985: Valvesoftware Steam Client

High severity, CVSS 7.2. EPSS: 1% chance of exploitation in the next 30 days.

Valve Steam 2.10.91.91 uses weak permissions (Users: read and write) for the Install folder, which allows local users to gain privileges via a Trojan horse steam.exe file.

Affected products

Published 2015-11-24. Last modified 2026-06-17.