CVE-2026-83963: Adobe Substance3D Modeler out-of-bounds write

CVE-2026-83963 · Severity: high · CVSS 7.8 · Published 2026-09-22

Adobe Substance3D Modeler is a 3D design and modeling tool used by creative professionals. An out-of-bounds write vulnerability allows attackers to execute arbitrary code with the privileges of the current user by tricking a victim into opening a specially crafted file. This could allow an attacker to compromise a designer's workstation and access sensitive design files or escalate privileges.

Technologies: Adobe Substance 3d Modeler, Adobe Substance3D Modeler. Vendors: Adobe.

Quick answers

Is CVE-2026-83963 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-83963 being exploited in the wild.
How severe is CVE-2026-83963?
High severity, with a CVSS score of 7.8, published 22 September 2026.
Which products and versions are affected?
Adobe Substance3D Modeler <UNKNOWN>.
Is there a fix for CVE-2026-83963?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-83963 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-83963?
Check whether you run Adobe Substance 3d Modeler or Adobe Substance3D Modeler at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an out-of-bounds write in Substance3D Modeler that can be triggered when processing a malicious file. Exploitation requires user interaction to open the crafted file, and results in arbitrary code execution in the context of the logged-in user. A patch is available from Adobe.

Affected products

  • Adobe Substance3D Modeler <UNKNOWN>

Timeline

  • 2026-09-22: disclosed

References

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