Link following in G DATA Total Security
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| G DATA | Total Security | 25.5.14.95 | — | No fix listed | CNA |
- Total Security VendorG DATA Affected 25.5.14.95 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gdata-software:total_security:25.5.14.95:*:*:*:*:*:*:* | 25.5.14.95 | Vulnerable | Gdata-software |
- cpe:2.3:a:gdata-software:total_security:25.5.14.95:*:*:*:*:*:*:* Versions 25.5.14.95 Vulnerable ·Gdata-software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-42126
- 2026-10-03 Alias added: GHSA-rj6w-j3qm-r3rg
References
Advisory 1
More G DATA vulnerabilities
- TI-2007-05222 Buffer overflow in a certain ActiveX control in ScanObjectBrowser.DLL in G DATA Antivirus… CVSS 2.0HIGH 7.6
- TI-2024-20114 Link following in G DATA Total Security CVSS 3.1HIGH 7.8
- TI-2024-01737 Link following in G DATA Total Security CVSS 3.1HIGH 7.8
- TI-2024-01736 Link following in G DATA Total Security CVSS 3.1HIGH 7.8
- TI-2023-12082 Link following in G DATA Total Security CVSS 3.0HIGH 7.8
- TI-2026-11262 Link following in G DATA Total Security CVSS 3.0HIGH 7.8
Sources
- CVE-2023-42126 · CVE Program
- CVE-2023-42126 · NVD
- FIRST EPSS
- GHSA-rj6w-j3qm-r3rg · GitHub Advisory Database · CC BY 4.0
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