Heap-based Buffer Overflow in Ashlar-Vellum Products
CVE-2025-65085

8.4HIGH

Key Information:

Vendor

Ashlar-vellum

Status
Cobalt
Xen Projecton
Argon
Lithium
Vendor
CVE Published:
25 November 2025

What is CVE-2025-65085?

A heap-based buffer overflow vulnerability exists in Ashlar-Vellum products that could potentially allow an attacker to exploit the system. This issue affects multiple versions of Cobalt, Xenon, Argon, Lithium, and Cobalt Share. If exploited, it may enable unauthorized information disclosure or arbitrary code execution, posing significant security risks to users.

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Affected Version(s)

Argon 0 <= 12.6.1204.207

Cobalt 0 <= 12.6.1204.207

Cobalt Share 0 <= 12.6.1204.207

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-3...
government-resource

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Michael Heinzl reported these vulnerabilities to CISA.
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