CVE-2025-43554
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 1.21.0 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 confidenceSubstance3D Modeler versions 1.21.0 and earlier contain an out-of-bounds write vulnerability during file parsing. When a user opens a maliciously crafted file, the application writes data beyond allocated memory boundaries, potentially allowing arbitrary code execution in the context of the current user.
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< 1.22.0CVSS 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
- 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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Determine installed Adobe Substance 3D Modeler versionOpen Substance 3D Modeler, then go to Help > About Adobe Substance 3D Modeler to display the version number. Alternatively, check the Windows Add/Remove Programs list or macOS Applications folder for the installed version.Affected if The version displayed is 1.21.0 or earlier (any version below 1.22.0).
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Confirm file parsing is the attack vectorThis vulnerability is triggered when the application parses specially crafted files. No additional configuration or feature toggles need to be enabled; simply opening a malicious file is sufficient.Affected if You run Adobe Substance 3D Modeler versions 1.21.0 or earlier and open files from untrusted or unknown sources.
A user is affected if Adobe Substance 3D Modeler version 1.21.0 or earlier is installed, and they open files from untrusted sources, as the out-of-bounds write occurs during file parsing.
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 · scoped1.22.0
Update to a version newer than 1.21.0 when the vendor patch is released. Until then, avoid opening files from untrusted sources and exercise caution with attachments from unknown senders.
1.22.0
- Locate your current Adobe Substance 3D Modeler installation
- Navigate to the Adobe Creative Cloud desktop application or visit the official Adobe website
- Search for Substance 3D Modeler in the available applications
- Update or install Substance 3D Modeler to version 1.22.0 or later
- Verify the installed version matches or exceeds 1.22.0
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 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 $3,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-43554 — 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-2025-43554 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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