ZDI-25-721: (0Day) Ashlar-Vellum Cobalt CO File Parsing Memory Corruption 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 memory corruption 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-2025-8001.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-721?
ZDI-25-721 is a critical vulnerability that allows remote code execution.
How do I fix ZDI-25-721?
To mitigate ZDI-25-721, users should update Ashlar-Vellum Cobalt to the latest patched version provided by the vendor.
What versions of Ashlar-Vellum Cobalt are affected by ZDI-25-721?
All versions of Ashlar-Vellum Cobalt are potentially vulnerable to ZDI-25-721 if they have not been updated.
What type of attacks can exploit ZDI-25-721?
ZDI-25-721 can be exploited through malicious web pages or files that require user interaction.
Is user interaction required to exploit ZDI-25-721?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file to exploit ZDI-25-721.