ZDI-25-116: (0Day) Ashlar-Vellum Cobalt VS 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 VS 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-2025-2015.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-116?
The severity of ZDI-25-116 is high due to its potential for remote code execution.
How do I fix ZDI-25-116?
To mitigate ZDI-25-116, update to the latest version of Ashlar-Vellum Cobalt as per vendor recommendations.
Who is affected by ZDI-25-116?
ZDI-25-116 affects installations of Ashlar-Vellum Cobalt.
What type of attacks can ZDI-25-116 facilitate?
ZDI-25-116 can facilitate remote code execution attacks requiring user interaction.
What must a user do to be exploited through ZDI-25-116?
To be exploited through ZDI-25-116, a user must visit a malicious page or open a malicious file.