CVE-2026-21364
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 - Painter versions 11.1.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. 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 confidenceA NULL pointer dereference vulnerability in Substance3D Painter versions 11.1.2 and earlier allows attackers to crash the application by tricking users into opening a specially crafted malicious file. The vulnerability occurs during file parsing/processing when the application fails to properly validate pointers before dereferencing them, leading to a crash and 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< 11.1.3CVSS 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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Check installed Adobe Substance 3D Painter versionOpen the application, then go to Help > About Adobe Substance 3D Painter to view the exact version number displayed in the dialogAffected if The version shown is 11.1.2 or any version earlier than 11.1.3
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Check version via Windows Add/Remove Programs or macOS Applications folderOn Windows, open Settings > Apps > Apps & features and search for 'Substance 3D Painter' to see the installed version. On macOS, locate the application in /Applications, right-click and select Get Info to view the versionAffected if The listed version is 11.1.2 or earlier
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Check version via application executable propertiesOn Windows, right-click the Substance 3D Painter executable in the installation folder, select Properties, and view the File Version tab. On macOS, right-click the app bundle, select Show Package Contents, and check the Info.plist for CFBundleShortVersionStringAffected if The version property shows 11.1.2 or lower
If the installed version of Adobe Substance 3D Painter is any version earlier than 11.1.3, the environment is affected by this vulnerability and users could experience crashes when opening untrusted 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 · scoped11.1.3
Users should avoid opening untrusted or unexpected files in Substance3D Painter until a patch is available. Organizations should implement file scanning and user awareness training to mitigate risks from malicious files.
Adobe Substance 3D Painter 11.1.3 or later
- Check current version of Adobe Substance 3D Painter via Help > About Adobe Substance 3D Painter
- Download Adobe Substance 3D Painter version 11.1.3 or later from the official Adobe website (helpx.adobe.com)
- Install the updated version by running the installer and following the prompts
- Restart Adobe Substance 3D Painter if prompted
- Verify the installed version is 11.1.3 or later via Help > About
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-21364 — 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-2026-21364 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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