CVE-2020-11827
In GOG Galaxy 1.2.67, there is a service that is vulnerable to weak file/service permissions: GalaxyClientService.exe. An attacker can put malicious code in a Trojan horse GalaxyClientService.exe. After that, the attacker can re-start this service as an unprivileged user to escalate his/her privileges and run commands on the machine with SYSTEM rights.
Date published : 2020-07-14
https://fatihhcelik.blogspot.com/2020/04/gog-galaxy-desktop-app-local-privilege.html