# CVE-2026-48427: Adobe Substance3D Designer out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-48427-adobe-substance3d-designer-out-of-bounds-write  
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-2026-48427 · Severity: high · CVSS 7.8 · Published 2026-08-25

Adobe Substance3D Designer, a professional 3D design and texturing application, contains an out-of-bounds write vulnerability that could allow attackers to execute arbitrary code with the privileges of the current user. An attacker must trick a user into opening a specially crafted malicious file to trigger the vulnerability, potentially compromising the designer's system and any work or credentials stored on it.

Technologies: [Adobe Substance 3d Designer](https://junglewise.ai/threats/technologies/substance-3d-designer), [Adobe Substance3D Designer](https://junglewise.ai/threats/technologies/substance3d-designer). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-48427 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48427 being exploited in the wild.

**How severe is CVE-2026-48427?** High severity, with a CVSS score of 7.8, published 25 August 2026.

**Which products and versions are affected?** Adobe Substance3D Designer.

**Is there a fix for CVE-2026-48427?** 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-2026-48427 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-48427?** Check whether you run Adobe Substance 3d Designer or Adobe Substance3D 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

The vulnerability is an out-of-bounds write flaw in Adobe Substance3D Designer that allows arbitrary code execution in the context of the current user. The attack vector requires user interaction, specifically the opening of a malicious file that triggers the memory corruption. No special authentication or elevated privileges are required beyond standard user execution context. The vulnerability has not been exploited in the wild as of the advisory date, though patches are expected to be available through Adobe's standard security update mechanisms.

## Affected products

- Adobe Substance3D 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)