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-25-118?
The severity of ZDI-25-118 is categorized as high due to its potential for remote code execution.
How do I fix ZDI-25-118?
To fix ZDI-25-118, update your Ashlar-Vellum Cobalt software to the latest version as provided by the vendor.
What impact does ZDI-25-118 have on affected systems?
ZDI-25-118 allows remote attackers to execute arbitrary code, which can lead to unauthorized access or control over the affected systems.
Is user interaction required to exploit ZDI-25-118?
Yes, user interaction is required for ZDI-25-118, as the target must visit a malicious page or open a malicious file.
Which versions of Ashlar-Vellum Cobalt are affected by ZDI-25-118?
ZDI-25-118 affects all versions of Ashlar-Vellum Cobalt that have not been patched.