Is CVE-2018-4048 actively exploited?

No active exploitation of CVE-2018-4048 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-4048 be exploited remotely?

No. CVE-2018-4048 requires local access to exploit.

What is the CVSS score of CVE-2018-4048?

CVE-2018-4048 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2018-4048

CWE-668Published: May 30, 2019· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An exploitable local privilege elevation vulnerability exists in the file system permissions of the `Temp` directory in GOG Galaxy 1.2.48.36 (Windows 64-bit Installer). An attacker can overwrite executables of the Desktop Galaxy Updater to exploit this vulnerability and execute arbitrary code with SYSTEM privileges.

NVD Source

Technical Analysis

CVE-2018-4048 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.