CVE-2019-15511: Gog Galaxy

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An exploitable local privilege escalation vulnerability exists in the GalaxyClientService installed by GOG Galaxy. Due to Improper Access Control, an attacker can send unauthenticated local TCP packets to the service to gain SYSTEM privileges in Windows system where GOG Galaxy software is installed. All GOG Galaxy versions before 1.2.60 and all corresponding versions of GOG Galaxy 2.0 Beta are affected.

Affected products

• Gog Galaxy: before 1.2.60 (fixed in 1.2.60); from 2.0.0, up to and including 2.0.8

Published 2019-11-21. Last modified 2026-06-17.