Ashlar-Vellum Cobalt Out-of-Bounds Write Remote Code Execution Vulnerability

Vulnerability

A remote code execution vulnerability has been identified in Ashlar-Vellum Cobalt, specifically within the parsing of CO files. The issue arises from inadequate validation of user-supplied data, leading to a write past the end of an allocated data structure. This vulnerability requires user interaction, as the target must open a malicious file or visit a harmful page. Exploitation of this flaw allows attackers to execute arbitrary code in the context of the current process.

Impact

Exploitation of this vulnerability allows for arbitrary code execution on the affected system.

Remediation

Due to the nature of this vulnerability, the primary recommendation is to limit interactions with the product.

Added: Sep 17, 2025, 9:35 PM
Updated: Sep 17, 2025, 9:35 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
10.0
exploitability
6.4
remediation
0.0
relevance
0.5
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.