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TI-2018-03021 Aliases CVE-2018-4053GHSA-rfw8-5w2f-9vpg

Improper input validation in GOG.COM GOG Galaxy

Priority LOW 25CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An exploitable local denial-of-service vulnerability exists in the privileged helper tool of GOG Galaxy's Games, version 1.2.47 for macOS. An attacker can send malicious data to the root-listening service, causing the application to terminate and become unavailable.

Why it matters now

EPSS 0.00325 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GOG.COMGOG GalaxyGog Galaxy 1.2.47 (macOS)—No fix listedCNA
  • GOG Galaxy VendorGOG.COM Affected Gog Galaxy 1.2.47 (macOS) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gog:galaxy:1.2.47:*:*:*:*:macos:*:*1.2.47VulnerableGOG.COM
  • cpe:2.3:a:gog:galaxy:1.2.47:*:*:*:*:macos:*:* Versions 1.2.47 Vulnerable ·GOG.COM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-4053
  2. 2026-10-03 Alias added: GHSA-rfw8-5w2f-9vpg

References

Advisory 1

  • TI-2020-05946 GOG Galaxy GalaxyClientService Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2020-12225 An issue was discovered in GOG Galaxy Client 2.0.17. CVSS 3.1HIGH 7.8
  • TI-2020-12226 An issue was discovered in GOG Galaxy Client 2.0.17. CVSS 3.1HIGH 7.8
  • TI-2022-13295 An exploitable local privilege escalation vulnerability exists in GOG Galaxy 2.0.46. CVSS 3.1HIGH 7.8
  • TI-2021-08442 GalaxyClient version 2.0.28.9 loads unsigned DLLs such as zlib1.dll, libgcc_s_dw2-1.dll… CVSS 3.1HIGH 7.8
  • TI-2020-15055 The client (aka GalaxyClientService.exe) in GOG GALAXY through 2.0.41 (as of 12:58 AM… CVSS 3.1HIGH 7.8
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences