Advisory Details

July 11th, 2025

G DATA Total Security GDTunerSvc Link Following Local Privilege Escalation Vulnerability

ZDI-25-590
ZDI-CAN-26240

CVE ID CVE-2025-2790
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS G DATA
AFFECTED PRODUCTS Total Security
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of G DATA Total Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the GDTunerSvc service. By creating a symbolic link, an attacker can abuse the service to delete arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS

Fixed in version 25.5.19.439


DISCLOSURE TIMELINE
  • 2025-03-12 - Vulnerability reported to vendor
  • 2025-07-11 - Coordinated public release of advisory
  • 2025-07-11 - Advisory Updated
CREDIT Anonymous
BACK TO ADVISORIES