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.
Conclusion & alert: CVE-2023-27347 is rated Moderate Risk (42.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.40%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.40% | +0.34% |
| 2 | 2025-03-19 | 0.05% | 0.05% | +0.01% |
| 3 | 2025-03-17 | — | 0.05% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| gdata-software | total_security | < 25.5.13.26 | cpe:2.3:a:gdata-software:total_security:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-23-379/ | Third Party Advisory |