Is CVE-2026-103823 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103823 being exploited in the wild.

How severe is CVE-2026-103823?

Medium severity, with a CVSS score of 5.5, published 13 October 2026.

Which products and versions are affected?

Adobe Substance 3d Designer 16.0.5 and earlier.

Is there a fix for CVE-2026-103823?

Yes: fixed in 16.0.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-103823 attacked?

It is attacked with local access.

Am I affected by CVE-2026-103823?

Check whether you run Adobe Substance 3d Designer, Apple macOS or Microsoft Windows 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.

CVE-2026-103823: Adobe Substance 3D Designer stack-based buffer overflow

CVE-2026-103823 · Severity: medium · CVSS 5.5 · Published 2026-10-13

Adobe Substance 3D Designer, a 3D design and texturing application, is affected by a stack-based buffer overflow vulnerability that can crash the application when a victim opens a malicious file. An attacker can exploit this flaw to cause a denial-of-service condition, preventing users from accessing the application temporarily. The vulnerability requires user interaction and does not allow remote exploitation or data theft.

Technologies: Adobe Substance 3d Designer, Apple macOS, Microsoft Windows. Vendors: Adobe, Apple, Microsoft.

Quick answers

Is CVE-2026-103823 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103823 being exploited in the wild.
How severe is CVE-2026-103823?: Medium severity, with a CVSS score of 5.5, published 13 October 2026.
Which products and versions are affected?: Adobe Substance 3d Designer 16.0.5 and earlier.
Is there a fix for CVE-2026-103823?: Yes: fixed in 16.0.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-103823 attacked?: It is attacked with local access.
Am I affected by CVE-2026-103823?: Check whether you run Adobe Substance 3d Designer, Apple macOS or Microsoft Windows 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: 16.0.7

Technical details

CVE-2026-103823 is a stack-based buffer overflow (CWE-121) in Adobe Substance 3D Designer that results in application denial-of-service. The vulnerability requires local attack vector with user interaction (opening a malicious file), no elevated privileges. The impact is limited to availability; no code execution, confidentiality, or integrity impact.

Affected products

Adobe Substance 3D Designer 16.0.5 and earlier

Timeline

2026-10-13: disclosed

References

https://www.adobe.com/trust/security/products/substance3d-designer/apsb26-169.html

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.