ZDI-CAN-25245: ZDI-25-118: (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-2025-2018.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-25245?
The severity of ZDI-CAN-25245 is high, as it allows remote execution of arbitrary code.
How do I fix ZDI-CAN-25245?
To fix ZDI-CAN-25245, update Ashlar-Vellum Cobalt to the latest patched version provided by the vendor.
What is the attack vector for ZDI-CAN-25245?
The attack vector for ZDI-CAN-25245 involves requiring user interaction, such as visiting a malicious page or opening a malicious file.
Who is affected by ZDI-CAN-25245?
Users of Ashlar-Vellum Cobalt are affected by ZDI-CAN-25245.
What kind of exploit is ZDI-CAN-25245?
ZDI-CAN-25245 is an exploit that allows remote code execution through user interaction.