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ArgonApplication · Ashlar

CVE-2025-46269

HIGH · 7.8 CVSS v3.1 Published 2025-08-18
Fix available
A fix is available. Upgrade to 12.2.1204.204 or later.
See remediation →
81/100
Remediation priority · High
No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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 VC6 files. This could lead to a heap-based buffer overflow. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The affected Ashlar-Vellum applications (Cobalt, Xenon, Argon, Lithium, and Cobalt Share) fail to properly validate user-supplied data when parsing VC6 files. This inadequate input validation enables a heap-based buffer overflow condition that can be exploited to execute arbitrary code within the context of the running process.

MitigationUpdate all affected Ashlar-Vellum applications to version 12.6.1204.204 or later to obtain the vendor patch. Until patched, avoid opening VC6 files from untrusted or unknown sources.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ArgonApplication
Affected:< 12.2.1204.204
CobaltApplication
Affected:< 12.2.1204.204
Cobalt ShareApplication
Affected:< 12.2.1204.204
LithiumApplication
Affected:< 12.2.1204.204
XenonApplication
Affected:< 12.2.1204.204

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Ashlar-Vellum product
    Check the installed application: Look for Ashlar Cobalt, Xenon, Argon, Lithium, or Cobalt Share in the system program files or application list
    Affected if Any of these five applications is installed on the system
  2. Check installed version number
    Open the application and navigate to Help > About, or right-click the executable and select Properties > Details to view the version. Compare against 12.2.1204.204
    Affected if The installed version is lower than 12.2.1204.204
  3. Verify VC6 file support is present
    Check if the application can open or import .vc6 file types. Look for VC6 in the application's supported file formats or import options
    Affected if VC6 file parsing capability exists in the installed version
  4. Review recent file activity
    Check the application's recent files list or temp directories for any recently opened VC6 files. On Windows, examine %TEMP% or application-specific temp folders for .vc6 files
    Affected if VC6 files have been opened with the affected application

A user is affected if they have any Ashlar-Vellum application (Cobalt, Xenon, Argon, Lithium, or Cobalt Share) installed with a version lower than 12.2.1204.204 and the VC6 file parsing feature is available.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 12.2.1204.204 or later
Fixed in 12.2.1204.204
Interim mitigation

Update all affected Ashlar-Vellum applications to version 12.6.1204.204 or later to obtain the vendor patch. Until patched, avoid opening VC6 files from untrusted or unknown sources.

Recommended fix High confidence

Ashlar-Vellum Cobalt/Xenon/Argon/Lithium/Cobalt Share version 12.6.1204.204

  1. 1. Close all Ashlar-Vellum applications (Argon, Cobalt, Cobalt Share, Lithium, Xenon)
  2. 2. Back up any existing project files and custom configurations
  3. 3. Download Ashlar-Vellum version 12.6.1204.204 or later from the official vendor website
  4. 4. Run the installer with administrator privileges
  5. 5. Follow the installation wizard prompts to complete the upgrade
  6. 6. After installation, verify the application version matches 12.6.1204.204 or higher
  7. 7. Test parsing of VC6 files to confirm the vulnerability is remediated
  8. 8. Update all installations across all workstations that run any of the affected products
Caveat Review release notes for potential workflow changes between versions; custom scripts parsing version strings may need updating

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Argon Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-46269 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data