ZDI-25-717: (0Day) Ashlar-Vellum Cobalt CO 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 CO 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-2025-7995.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-717?
ZDI-25-717 has been classified with a significant severity due to its potential for remote code execution.
How do I fix ZDI-25-717?
To mitigate ZDI-25-717, users should update to the latest patched version of Ashlar-Vellum Cobalt as released by the vendor.
What type of vulnerability is ZDI-25-717?
ZDI-25-717 is a remote code execution vulnerability that requires user interaction to be exploited.
Who is affected by ZDI-25-717?
Users of Ashlar-Vellum Cobalt are at risk if they have not applied the relevant security updates.
What are the consequences of exploiting ZDI-25-717?
Exploiting ZDI-25-717 could allow attackers to execute arbitrary code on the victim's system, potentially leading to data theft or system compromise.