CVE-2020-24574
mediumpriority · track · 31OT risk · elevatedEPSS 0.006 · 49 %ileEUUSEPSS · scored 2026-10-23
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- http://www.nsfocus.net/vulndb/48595cnnvd
- https://github.com/jtesta/gog_galaxy_client_service_poccnnvd
- https://github.com/jtesta/gog_galaxy_client_service_poc/issues/1#issuecomment-926932218cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-24574cnnvd
- https://www.gog.com/galaxycnnvd
- https://www.positronsecurity.com/blog/2020-08-13-gog-galaxy_client-local-privilege-escalation_deuce/cnnvd
- https://github.com/jtesta/gog_galaxy_client_service_pocenisa_euvd
- https://github.com/jtesta/gog_galaxy_client_service_poc/issues/1#issuecomment-926932218enisa_euvd
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