ZDI-25-634: (0Day) Ashlar-Vellum Graphite VC6 File Parsing Uninitialized Variable Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of VC6 files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Graphite. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-7981.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-634?
The ZDI-25-634 vulnerability has a high severity rating due to its potential for remote code execution.
How do I fix ZDI-25-634?
To mitigate ZDI-25-634, ensure that you update Ashlar-Vellum Graphite to the latest version provided by the vendor.
What are the consequences of exploiting ZDI-25-634?
Exploitation of ZDI-25-634 could allow an attacker to execute arbitrary code, leading to potential data theft or system compromise.
What are the requirements for exploiting ZDI-25-634?
Exploiting ZDI-25-634 requires user interaction, such as visiting a malicious webpage or opening a malicious file.
Which software applications are affected by ZDI-25-634?
ZDI-25-634 specifically affects installations of Ashlar-Vellum Graphite.