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.
http://packetstormsecurity.com/files/134513/Steam-2.10.91.91-Weak-File-Permissions-Privilege-Escalation.html
Source: Mitre, NVD
Published: 2015-11-24
Updated: 2025-04-12
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.3
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.00312