CVE-2026-21363
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 confidenceSubstance3D Painter versions 11.1.2 and earlier contain a NULL pointer dereference vulnerability that can be triggered when a user opens a specially crafted malicious file, causing the application to crash and result 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< 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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Identify Adobe Substance 3D Painter installationSearch system for the Substance 3D Painter executable (typically named Substance 3D Painter.exe) or check common installation pathsAffected if The application is found on the system
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Determine the installed version numberRight-click the executable and select Properties, then view the Details tab for version information, or launch the application and check Help > AboutAffected if Version information cannot be retrieved or shows a version number
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Compare version against affected rangeCheck if the installed version is any release prior to 11.1.3, including 11.1.2, 11.1.1, 11.1.0, and earlier version branchesAffected if Installed version is 11.1.2 or earlier (any version below 11.1.3)
Environment is affected if Adobe Substance 3D Painter version 11.1.2 or earlier is installed and a user opens 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 · scoped11.1.3
Users should avoid opening files from untrusted sources until Adobe releases an official patch. Organizations should consider restricting file handling permissions and monitoring for suspicious file types.
11.1.3 or later
- Open Adobe Creative Cloud desktop application on your system
- Navigate to the 'Apps' section or find Substance 3D Painter in your installed apps
- Locate Substance 3D Painter and check for available updates
- Update to version 11.1.3 or later
- Alternatively, visit the official Adobe download page at helpx.adobe.com and download version 11.1.3 or later
- Verify the installation by checking the application's version number in the About/Help menu
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-21363 — 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-2026-21363 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data