CVE-2023-42126
G DATA Total Security GDBackupSvc Symbolic Link Escalation Vulnerability
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.
INFO
Published Date :
May 3, 2024, 3:15 a.m.
Last Modified :
Aug. 18, 2025, 3:32 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.0 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-42126.
| URL | Resource |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-23-1493/ | Third Party Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-23-1493/ | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-42126 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-42126
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-42126 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-42126 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Aug. 18, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gdata-software:total_security:25.5.14.95:*:*:*:*:*:*:* Added Reference Type CVE: https://www.zerodayinitiative.com/advisories/ZDI-23-1493/ Types: Third Party Advisory Added Reference Type Zero Day Initiative: https://www.zerodayinitiative.com/advisories/ZDI-23-1493/ Types: Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-23-1493/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Received by [email protected]
May. 03, 2024
Action Type Old Value New Value Added 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. Added Reference Zero Day Initiative https://www.zerodayinitiative.com/advisories/ZDI-23-1493/ [No types assigned] Added CWE Zero Day Initiative CWE-59 Added CVSS V3 Zero Day Initiative AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H