CVE-2019-15511
An exploitable local privilege escalation vulnerability exists in the GalaxyClientService installed by GOG Galaxy.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.75% probability · 55th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- gog/galaxy
- Source
- cve@mitre.org
EPSS 0.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cqureacademy.com/cqure-labs/cqlabs-cve-2019-15511-broken-access-control-in-gog-galaxyThird Party Advisory, Vendor Advisory
- https://support.gog.com/hc/en-us/articles/360025458833-GOG-GALAXY-2-0-updates-and-known-issuesRelease Notes, Vendor Advisory
- https://cqureacademy.com/cqure-labs/cqlabs-cve-2019-15511-broken-access-control-in-gog-galaxyThird Party Advisory, Vendor Advisory
- https://support.gog.com/hc/en-us/articles/360025458833-GOG-GALAXY-2-0-updates-and-known-issuesRelease Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.