Auth bypass in Gog Galaxy
CVE-2019-15511
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (53.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.gog.com/hc/en-us/articles/360025458833-GOG-GALAXY-2-0-updates-and-known… (Release Notes, Vendor Advisory)
- cqureacademy.com/cqure-labs/cqlabs-cve-2019-15511-broken-access-control-in-gog-… (Third Party Advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-15511?
- CVE-2019-15511 is a high-severity vulnerability in Gog Galaxy, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2019-11-21.
- How severe is CVE-2019-15511?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-15511 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.