CVE-2025-21170
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 - Modeler versions 1.15.0 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. 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 · moderate confidenceA NULL pointer dereference vulnerability exists in Substance3D Modeler versions 1.15.0 and earlier when parsing maliciously crafted files. An attacker can trigger this vulnerability by enticing a user to open a specially crafted file, causing the application to crash due to dereferencing a NULL pointer, resulting in denial of service.
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< 1.21.0CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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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Determine installed Adobe Substance 3D Modeler versionOpen the application and navigate to Help > About Adobe Substance 3D Modeler, or check the version displayed in the application window title barAffected if The displayed version number is less than 1.21.0 (for example, 1.15.0, 1.10.0, 1.5.0, etc.)
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Verify application version via system installed programs listOn Windows, open Programs and Features or run 'wmic product get name,version'; on macOS, check /Applications folder or run 'mdls' on the .app bundleAffected if The listed version is any build earlier than 1.21.0
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Confirm the application can open external 3D model filesVerify that the software has file import functionality enabled and is configured to accept user-provided model files (default behavior)Affected if The file import feature is accessible to the user, which is the default configuration for this application
A user is affected if their installed Adobe Substance 3D Modeler version is any release prior to version 1.21.0 and they can open external 3D model files, as both conditions are required for the NULL pointer dereference to be triggered.
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 · scoped1.21.0
Upgrade Substance3D Modeler to a version newer than 1.15.0 once the vendor releases a patch. Avoid opening untrusted or unexpected 3D model files from unverified sources until the patch is applied.
1.21.0 or later
- 1. Close Adobe Substance 3D Modeler if it is currently running
- 2. Open Adobe Creative Cloud desktop application or navigate to the Adobe Substance 3D Modeler download page
- 3. Check for available updates to Substance 3D Modeler
- 4. Download and install version 1.21.0 or later
- 5. Verify the installed version by opening the application and checking Help > About Adobe Substance 3D Modeler
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-21170 — 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-2025-21170 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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- 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
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