Type Confusion Remote Code Execution Vulnerability in Ashlar-Vellum Cobalt
CVE-2025-8000

7.8HIGH

Key Information:

Vendor

Ashlar-vellum

Status
Cobalt
Vendor
CVE Published:
17 September 2025

What is CVE-2025-8000?

A vulnerability in the Ashlar-Vellum Cobalt LI file parsing can allow remote attackers to execute arbitrary code. This issue arises due to insufficient validation of user-supplied data, leading to a type confusion scenario. Exploitation requires user interaction, as victims must access a malicious webpage or open a harmful file. Successful exploitation can enable attackers to execute code within the context of the affected process, posing significant security risks.

Affected Version(s)

Cobalt 12 SP1

References

https://www.zerodayinitiative.com/advisories/ZDI-25-718/
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

.