Out-Of-Bounds Write Vulnerability in Ashlar-Vellum Cobalt Product
CVE-2025-2020

7.8HIGH

Key Information:

Vendor

Ashlar-vellum

Status
Cobalt
Vendor
CVE Published:
11 March 2025

What is CVE-2025-2020?

The vulnerability in Ashlar-Vellum Cobalt involves an out-of-bounds write that occurs during the parsing of VC6 files. Due to inadequate validation of user-supplied data, attackers may exploit this flaw to execute arbitrary code when a user engages with malicious content, such as visiting a compromised webpage or opening an infected file. This exploitation can occur within the context of the current process, posing significant risks to user environments.

Affected Version(s)

Cobalt 1204.91

References

https://www.zerodayinitiative.com/advisories/ZDI-25-124/
x_research-advisory

CVSS V3.0

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.