CVE-2019-15511 json
An exploitable local privilege escalation vulnerability exists in the GalaxyClientService installed by GOG Galaxy.
published 2019-11-21 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-6498
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- gog galaxy 1.2.60
Exploit prediction
0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
support.gog.com
/hc/en-us/articles/360025458833-GOG-GALAXY-2-0-updates-and-known-issues
release-notes, vendor-advisory
-
cqureacademy.com
/cqure-labs/cqlabs-cve-2019-15511-broken-access-control-in-gog-galaxy
third-party-advisory, vendor-advisory
Sources
- CVE List CVE-2019-15511
- NVD CVE-2019-15511
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