CVE-2023-27347: G DATA Total Security Link Following Local Privilege Escalation Vulnerability

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-03 · updated 2026-06-17
Weakness: CWE-59

Description

G DATA Total Security Link Following Local Privilege Escalation Vulnerability. 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 G DATA Backup Service. By creating a symbolic link, an attacker can abuse the service to create arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-18749.

Affected products

G DATA Total Security: before 25.5.13.26 — fixed in 25.5.13.26

How to fix

Upgrade to a fixed version: G DATA Total Security 25.5.13.26. Check the vendor advisory for mitigations.

References

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