# CVE-2026-48431: Adobe Substance 3D Designer heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-48431-adobe-substance-3d-designer-heap-buffer-overflow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-25. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-48431 · Severity: high · CVSS 7.8 · Published 2026-08-25

Adobe Substance 3D Designer is a professional 3D modeling and texturing software used by graphics professionals and artists. A heap buffer overflow vulnerability in this application could allow attackers to execute arbitrary code on a user's machine if they trick them into opening a malicious file, potentially compromising sensitive project data and system integrity.

Technologies: [Adobe Substance 3d Designer](https://junglewise.ai/threats/technologies/substance-3d-designer). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-48431 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48431 being exploited in the wild.

**How severe is CVE-2026-48431?** High severity, with a CVSS score of 7.8, published 25 August 2026.

**Which products and versions are affected?** Adobe Substance 3D Designer.

**Is there a fix for CVE-2026-48431?** 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-2026-48431 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-48431?** Check whether you run Adobe Substance 3d Designer. 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

This vulnerability is a heap-based buffer overflow in Adobe Substance 3D Designer that permits arbitrary code execution within the context of the user running the application. The vulnerability requires user interaction, specifically opening a crafted malicious file. This is a classic memory corruption bug where inadequate bounds checking on heap-allocated buffers allows an attacker-controlled input to overflow and corrupt adjacent memory, enabling code execution. No public exploit code is currently known to be circulating in the wild.

## Affected products

- Adobe Substance 3D Designer

## Timeline

- 2026-08-25: disclosed

## References

- [https://helpx.adobe.com/security/products/substance3d_designer/apsb26-115.html](https://helpx.adobe.com/security/products/substance3d_designer/apsb26-115.html)

## Related threats

- [Adobe Substance 3D Designer NULL pointer dereference denial-of-service](https://junglewise.ai/threats/cve-2026-103829-substance3d-designer-is-affected-by-a-null-pointer-dereference)
- [Adobe Substance 3D Designer null pointer dereference](https://junglewise.ai/threats/cve-2026-103828-substance3d-designer-is-affected-by-a-null-pointer-dereference)
- [Adobe Substance 3D Designer stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-103827-substance3d-designer-is-affected-by-a-stack-based-buffer)
- [Adobe Substance 3D Designer null pointer dereference](https://junglewise.ai/threats/cve-2026-103826-substance3d-designer-is-affected-by-a-null-pointer-dereference)
- [Adobe Substance 3D Designer out-of-bounds read in file parsing](https://junglewise.ai/threats/cve-2026-103825-substance3d-designer-is-affected-by-an-out-of-bounds-read)