ZDI-25-117: (0Day) Ashlar-Vellum Cobalt VC6 File Parsing Type Confusion Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. 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 validation of user-supplied data, which can result in a type confusion condition. 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 Cobalt. 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-2025-2016.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-117?
ZDI-25-117 is considered a high severity vulnerability due to its potential for remote code execution.
How do I fix ZDI-25-117?
To fix ZDI-25-117, users should update Ashlar-Vellum Cobalt to the latest version provided by the vendor.
What type of attacks can exploit ZDI-25-117?
ZDI-25-117 can be exploited through remote code execution by tricking users into visiting malicious web pages or opening harmful files.
Is user interaction required to exploit ZDI-25-117?
Yes, user interaction is required for ZDI-25-117 as the target needs to visit a malicious page or open a malicious file.
Which software is affected by ZDI-25-117?
ZDI-25-117 specifically affects installations of Ashlar-Vellum Cobalt.