Out-of-Bounds Write Vulnerability in Ashlar-Vellum Products
CVE-2025-53705

8.4HIGH

Key Information:

Vendor

Ashlar-vellum

Status
Cobalt
Xen Projecton
Argon
Lithium
Vendor
CVE Published:
18 August 2025

What is CVE-2025-53705?

In several Ashlar-Vellum applications, including Cobalt, Xenon, Argon, Lithium, and Cobalt Share, a critical issue arises from inadequate validation of user-supplied inputs during the parsing of CO files. This flaw can permit an out-of-bounds write, potentially enabling an attacker to execute arbitrary code within the current process's context. Users of these applications are advised to apply updates to mitigate security risks and protect their systems.

Affected Version(s)

Argon 0 < 12.6.1204.204

Cobalt 0 < 12.6.1204.204

Cobalt Share 0 < 12.6.1204.204

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-2...

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.
.
CVE-2025-53705 : Out-of-Bounds Write Vulnerability in Ashlar-Vellum Products