CVE-2025-21161
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 · uneditedSubstance3D - Designer versions 14.0.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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 confidenceAdobe Substance3D Designer versions 14.0.2 and earlier contain an out-of-bounds write vulnerability. When a user opens a specially crafted malicious .Designer file, the application writes data beyond allocated memory boundaries, potentially enabling arbitrary code execution with the current user's privileges.
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< 14.1CVSS 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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Verify Adobe Substance3D Designer is installedCheck for the application in typical installation locations: Windows (Program Files/Adobe/Adobe Substance 3D Designer) or macOS (/Applications/Adobe Substance 3D Designer). Also check Add/Remove Programs on Windows or Applications folder on macOS.Affected if The application is present on the system
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Find the installed version numberOn Windows: Open Control Panel > Programs and Features, find Adobe Substance3D Designer and note the version column. On macOS: Right-click the application in Applications, select Get Info, and check the Version field. Alternatively, run the application and go to Help > About.Affected if A version number is displayed
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Compare against vulnerable version rangeThe vulnerability affects versions prior to 14.1. Compare your installed version (such as 14.0.2, 14.0.1, 14.0, or earlier) against this threshold.Affected if Installed version is 14.0.2 or earlier, or any version shown as less than 14.1
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Confirm .Designer file handling is activeThe vulnerability triggers when opening .Designer files. Verify that .Designer file association exists (double-click a .Designer file or check file associations in Windows Explorer or macOS Finder).Affected if The application is configured to open .Designer files (this is default behavior)
You are affected if Adobe Substance3D Designer is installed with a version prior to 14.1, and the application handles .Designer files (the default configuration).
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 · scoped14.1
Users should refrain from opening untrusted or unsolicited .Designer files. Update Adobe Substance3D Designer to version 14.0.3 or later once the official patch is released. Apply vendor security updates promptly.
Substance 3D Designer 14.1
- Navigate to the Adobe Creative Cloud desktop application or visit helpx.adobe.com
- Locate Substance 3D Designer in your installed applications
- Check for available updates or navigate to the Substance 3D Designer product page
- Download and install Substance 3D Designer version 14.1 or later
- Verify the installed version by opening Substance 3D Designer and checking the version number in the application menu (Help > About)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-21161 — 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-2025-21161 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