ZDI-CAN-25348: ZDI-25-122: (0Day) Ashlar-Vellum Cobalt LI File Parsing Integer Overflow 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 LI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. 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-2025-2023.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-25348?
The severity of ZDI-CAN-25348 is rated as critical due to its potential for remote code execution.
How do I fix ZDI-CAN-25348?
To fix ZDI-CAN-25348, users should update to the latest version of Ashlar-Vellum Cobalt provided by the vendor.
What kind of attack vector is exploited in ZDI-CAN-25348?
ZDI-CAN-25348 is exploited via a remote code execution attack that requires user interaction.
What software is affected by ZDI-CAN-25348?
ZDI-CAN-25348 affects installations of Ashlar-Vellum Cobalt.
What are the requirements for exploiting ZDI-CAN-25348?
Exploitation of ZDI-CAN-25348 requires the target to visit a malicious web page or open a malicious file.