CVE-2025-53705: Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, Cobalt Share Out-of-bounds Write

Published Aug 18, 2025
·
Updated

In Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions prior to 12.6.1204.204, the affected applications lack proper validation of user-supplied data when parsing CO files. This could lead to an out-of-bounds write. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

Affected Software

15 affected componentsFixes available
Ashlar-Vellum Cobalt<12.6.1204.204
Ashlar-Vellum Xenon<12.6.1204.204
Ashlar-Vellum Argon<12.6.1204.204
Ashlar-Vellum Lithium<12.6.1204.204
Ashlar-Vellum Cobalt Share<12.6.1204.204
: Ashlar-Vellum Cobalt<12.6.1204.204
12.6.1204.204
: Ashlar-Vellum Xenon<12.6.1204.204
12.6.1204.204
: Ashlar-Vellum Argon<12.6.1204.204
12.6.1204.204
: Ashlar-Vellum Lithium<12.6.1204.204
12.6.1204.204
: Ashlar-Vellum Cobalt Share<12.6.1204.204
12.6.1204.204
Ashlar Argon<12.2.1204.204
Ashlar Cobalt<12.2.1204.204
Ashlar Cobalt Share<12.2.1204.204
Ashlar Lithium<12.2.1204.204
Ashlar Xenon<12.2.1204.204

Remediation

Information

Ashlar-Vellum recommends users update to Versions 12.6.1204.204 and above https://download.ashlar.com/v12/index.html  of the affected products. * Ashlar-Vellum strongly recommends that all users update Cobalt, Xenon, Argon, Lithium, and Cobalt Share to the latest supported version by selecting Help > Check Web for Updates from the application's main menu. * Users should only open CO/XE/AR/LI files or import supported file formats from trusted sources.

Event History

Aug 18, 2025
CVE Published
via MITRE·09:05 PM
Data Sourced
via MITRE·09:05 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via ICS·09:11 PM
SeverityWeaknessAffected Software
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2025-53705?

CVE-2025-53705 is rated as a high-severity vulnerability due to the potential for out-of-bounds write attacks.

2

How do I fix CVE-2025-53705?

To resolve CVE-2025-53705, upgrade to Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, or Cobalt Share version 12.6.1204.204 or later.

3

What applications are affected by CVE-2025-53705?

CVE-2025-53705 affects Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions prior to 12.6.1204.204.

4

What type of vulnerability is CVE-2025-53705?

CVE-2025-53705 is an out-of-bounds write vulnerability that arises from improper validation of user-supplied data.

5

What can an attacker do with CVE-2025-53705?

An attacker could leverage CVE-2025-53705 to execute arbitrary code or cause application crashes.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203