CVE-2026-27273
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 - Stager versions 3.1.7 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 · moderate confidenceSubstance3D Stager versions 3.1.7 and earlier contain an out-of-bounds write vulnerability in file parsing functionality. An attacker can craft a malicious 3D file that, when opened by a victim, triggers improper memory writes 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< 3.1.8CVSS 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 version of Adobe Substance 3D StagerOpen Windows Settings > Apps > Apps & features, locate 'Adobe Substance 3D Stager' in the installed programs list, and note the version number displayed. Alternatively, right-click the application executable (typically in Program Files/Adobe/Adobe Substance 3D Stager) and view Properties > Details to see the File Version.Affected if The displayed version is 3.1.7 or any version number lower than 3.1.8
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Confirm file parsing is in useSubstance 3D Stager is a 3D scene composition and rendering application whose primary function is importing and parsing 3D file formats. This vulnerability is triggered when the application opens and parses a maliciously crafted 3D file.Affected if The application is installed and used to open or import 3D files from any source, whether trusted or untrusted
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Verify application is not running in a sandboxed or restricted environmentCheck if Adobe Substance 3D Stager is run with any application sandboxing, containerization, or reduced privilege mode enabled that would limit the impact of arbitrary code execution.Affected if The application runs with standard user privileges and has full access to the user environment without additional security restrictions
A user is affected if Adobe Substance 3D Stager version 3.1.7 or earlier is installed and the file parsing functionality is used to open 3D 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 · scoped3.1.8
Upgrade Substance3D Stager to a version newer than 3.1.7. Until a patch is available, avoid opening files from untrusted sources in Substance3D Stager.
3.1.8
- Backup any existing Substance 3D Stager projects and settings
- Uninstall the current version of Substance 3D Stager (versions 3.1.7 and earlier)
- Download Substance 3D Stager version 3.1.8 or later from the official Adobe website (helpx.adobe.com)
- Install the downloaded version 3.1.8 or newer
- Verify the installed version by checking Help > About in the application
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-27273 — 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-2026-27273 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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