High severity7.8NVD Advisory· Published Aug 21, 2020· Updated Jun 17, 2026
CVE-2020-24574
CVE-2020-24574
Description
The client (aka GalaxyClientService.exe) in GOG GALAXY through 2.0.41 (as of 12:58 AM Eastern, 9/26/21) allows local privilege escalation from any authenticated user to SYSTEM by instructing the Windows service to execute arbitrary commands. This occurs because the attacker can inject a DLL into GalaxyClient.exe, defeating the TCP-based "trusted client" protection mechanism.
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Affected products
4- GOG/GOG GALAXYdescription
- Range: <=2.0.41
Patches
Vulnerability mechanics
References
3- www.positronsecurity.com/blog/2020-08-13-gog-galaxy_client-local-privilege-escalation_deuce/nvdExploitThird Party Advisory
- github.com/jtesta/gog_galaxy_client_service_poc/issues/1nvdIssue TrackingThird Party Advisory
- www.gog.com/galaxynvdVendor Advisory
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