{"id":"CVE-2020-11827","aliases":["EUVD-2020-4167","GHSA-q2mw-237c-cpjv"],"status":"published","title":"In GOG Galaxy 1.2.67, there is a service that is vulnerable to weak file/service permissions:...","description":"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.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00342,"percentile":0.28048,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-732"],"published":"2020-07-14T17:06:19Z","modified":"2026-06-17T02:50:52Z","products":[{"vendor":"gog","product":"galaxy"}],"references":[{"url":"https://www.gog.com/galaxy","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://fatihhcelik.blogspot.com/2020/04/gog-galaxy-desktop-app-local-privilege.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11827"},{"url":"https://github.com/advisories/GHSA-q2mw-237c-cpjv"}],"sources":{"cve":[{"id":"CVE-2020-11827","description":"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.","status":"published","published":"2020-07-14T17:06:19Z","modified":"2024-08-04T11:41:59.458Z","updated_at":"2026-11-02T14:35:57.352161Z"}],"euvd":[{"id":"EUVD-2020-4167","description":"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.","status":"published","published":"2020-07-14T17:06:19Z","modified":"2024-08-04T11:41:59Z","updated_at":"2026-11-03T03:07:42.412087Z"}],"ghsa":[{"id":"GHSA-q2mw-237c-cpjv","title":"In GOG Galaxy 1.2.67, there is a service that is vulnerable to weak file/service permissions:...","description":"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.","status":"published","published":"2022-05-24T17:22:50Z","modified":"2023-01-29T05:03:22Z","cwes":["CWE-269"],"updated_at":"2026-11-02T14:45:18.070616Z"}],"nvd":[{"id":"CVE-2020-11827","description":"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.","status":"published","published":"2020-07-14T18:15:14.307Z","modified":"2026-06-17T02:50:52.21Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:06:09.126752Z"}]}}