CVE-2026-27275
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 · high confidenceSubstance3D Stager versions 3.1.7 and earlier contain an out-of-bounds write vulnerability that allows arbitrary code execution when a user opens a maliciously crafted file. The vulnerability exists in file parsing logic and enables memory corruption that can be leveraged for 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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Locate the Substance 3D Stager installationSearch for the application executable (typically named 'Substance 3D Stager.exe' on Windows or found in the Applications folder on macOS)Affected if The application is installed on the system
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Determine the installed versionRight-click the executable and select Properties, then view the Details tab for version information. On macOS, right-click the app, select Get Info, and check the Version field. Alternatively, check the application's Help > About menu.Affected if The version displayed is 3.1.7 or earlier, or shows a version lower than 3.1.8
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Verify the version against the affected rangeCompare the installed version number to the affected range: any version below 3.1.8 is vulnerableAffected if The installed version is 3.1.7, 3.1.6, 3.1.5, or any earlier version, or if the version cannot be determined but the software is present
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Confirm file parsing is accessibleThe vulnerability is triggered when opening maliciously crafted files - verify that the application's file import functionality is available and operationalAffected if The software can open or import 3D scene files (such as .obj, .fbx, or native .stager files)
A user is affected if Adobe Substance 3D Stager is installed with any version lower than 3.1.8, as the out-of-bounds write vulnerability in the file parsing logic can be triggered by opening a specially crafted malicious file.
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 and exercise caution when opening files from untrusted sources until the patch is applied.
3.1.8
- Open Adobe Substance 3D Stager
- Navigate to Help > Check for Updates to see the current installed version
- If running version 3.1.7 or earlier, download Substance 3D Stager version 3.1.8 from the official Adobe website (helpx.adobe.com)
- Run the installer and follow the prompts to complete the upgrade
- After installation, verify the version is 3.1.8 by checking Help > About in the application
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-27275 — 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-2026-27275 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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