CVE-2026-103830: Adobe Substance 3D Stager stack-based buffer overflow

CVE-2026-103830 · Severity: high · CVSS 7.8 · Published 2026-10-13

Adobe Substance 3D Stager is a 3D design tool used by creative professionals. A stack-based buffer overflow vulnerability allows an attacker to execute arbitrary code on a user's computer by tricking them into opening a malicious file. This could lead to complete system compromise, data theft, or installation of malware.

Technologies: Adobe Substance 3d Stager. Vendors: Adobe.

Quick answers

Is CVE-2026-103830 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-103830 being exploited in the wild.
How severe is CVE-2026-103830?
High severity, with a CVSS score of 7.8, published 13 October 2026.
Which products and versions are affected?
Adobe Substance 3d Stager 3.1.8 and earlier.
Is there a fix for CVE-2026-103830?
Yes: fixed in 3.1.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103830 attacked?
It is attacked with local access, in a web application.
Am I affected by CVE-2026-103830?
Check whether you run Adobe Substance 3d Stager 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.

How to fix

  • Fixed in: 3.1.9

Technical details

A stack-based buffer overflow (CWE-121) in Adobe Substance 3D Stager allows arbitrary code execution with the privileges of the current user. Exploitation requires local access and user interaction to open a malicious file; no authentication or special privileges are needed. A fix is available in version 3.1.9.

Affected products

  • Adobe Substance 3D Stager 3.1.8 and earlier

Timeline

  • 2026-10-13: disclosed
  • 2026-10-13: advisory

References

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