CVE-2025-41392
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 · uneditedIn 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 AR files. This could lead to an out-of-bounds read. 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 confidenceThe Ashlar-Vellum applications (Cobalt, Xenon, Argon, Lithium, and Cobalt Share) prior to version 12.6.1204.204 fail to properly validate user-supplied data when parsing .AR files, leading to an out-of-bounds memory read. This can be exploited to achieve arbitrary code execution in the context of the current process.
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< 12.2.1204.204< 12.2.1204.204< 12.2.1204.204< 12.2.1204.204< 12.2.1204.204CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify installed Ashlar-Vellum productOpen the application (Cobalt, Xenon, Argon, Lithium, or Cobalt Share) and locate the version information, typically found under Help > About or the application's main menuAffected if Any of these five products are installed
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Determine the exact version numberLocate the full version string in the About dialog or application metadata. The version format appears as major.minor.build.revision (e.g., 12.2.1204.204)Affected if The product is any of the five Ashlar-Vellum applications
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Compare version against affected rangeCompare your installed version number to the affected range: versions prior to 12.2.1204.204 are vulnerable. Note that the fix version is 12.6.1204.204Affected if Installed version is less than 12.2.1204.204
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Verify .AR file handling capabilityConfirm that the installed product can open or import .AR files. This is a native file format for these applicationsAffected if The product supports .AR file parsing and the version is below 12.2.1204.204
You are affected if you have any of Cobalt, Xenon, Argon, Lithium, or Cobalt Share installed with a version number lower than 12.2.1204.204 and the application can process .AR files.
Generated from the published advisory. Verify against your own configuration.
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 · scoped12.2.1204.204
Upgrade to version 12.6.1204.204 or later. Until patched, avoid opening AR files from untrusted or unknown sources.
Ashlar-Vellum Cobalt/Xenon/Argon/Lithium/Cobalt Share version 12.6.1204.204 or later
- Identify the specific Argon, Cobalt, Cobalt Share, Lithium, or Xenon product currently installed
- Determine the currently installed version number
- Navigate to the official Ashlar-Vellum software download portal or update mechanism
- Download and install version 12.6.1204.204 or later of the affected product
- Verify the installation was successful by checking the application's About/Version information
- Restart any running instances of the application
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-41392 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-41392 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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