CVE-2025-7991: (0Day) Ashlar-Vellum Cobalt VC6 File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
Ashlar-Vellum Cobalt VC6 File Parsing Out-Of-Bounds Read 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 VC6 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25945.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-7991?
CVE-2025-7991 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2025-7991?
To fix CVE-2025-7991, update Ashlar-Vellum Cobalt to the latest version provided by the vendor.
What exploit requires user interaction for CVE-2025-7991?
Exploitation of CVE-2025-7991 requires that users open a maliciously crafted file in Ashlar-Vellum Cobalt.
What are the risks associated with CVE-2025-7991?
The risks associated with CVE-2025-7991 include unauthorized access and execution of arbitrary code on the affected system.
Which software is affected by CVE-2025-7991?
The software affected by CVE-2025-7991 is Ashlar-Vellum Cobalt.