What’s Vulnerable › Vulnerabilities

CVE-2023-42126: G DATA Total Security GDBackupSvc Service 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 GDBackupSvc Service 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 GDBackupSvc service. By creating a symbolic link, an attacker can abuse the service to create a file with a permissive DACL. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-20694.

Affected products

• G DATA Total Security: 25.5.14.95

References

• https://www.zerodayinitiative.com/advisories/ZDI-23-1493/
• https://www.zerodayinitiative.com/advisories/ZDI-23-1493/

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