# CVE-2026-48419: Adobe Substance3D Sampler out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-48419-adobe-substance3d-sampler-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-2026-48419 · Severity: high · CVSS 7.8 · Published 2026-08-25

Adobe Substance3D Sampler is a 3D texturing and design tool used by creative professionals. A flaw in the application allows attackers to execute arbitrary code on a user's computer by tricking them into opening a malicious file. Successful exploitation could lead to complete system compromise, data theft, or malware installation.

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

## Quick answers

**Is CVE-2026-48419 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48419 being exploited in the wild.

**How severe is CVE-2026-48419?** High severity, with a CVSS score of 7.8, published 25 August 2026.

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

**Is there a fix for CVE-2026-48419?** 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-2026-48419 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-48419?** Check whether you run Adobe Substance 3D Sampler or Adobe Substance3D Sampler. 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 Substance3D Sampler that allows arbitrary code execution in the context of the current user. The attack requires user interaction—specifically, a victim must open a specially crafted malicious file to trigger the vulnerability. No network access or elevated privileges are required. An attacker who successfully exploits this issue can execute arbitrary code with the privileges of the logged-in user, potentially compromising the system and accessing sensitive project files or credentials.

## Affected products

- Adobe Substance3D Sampler

## Timeline

- 2026-08-25: disclosed

## References

- [https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html](https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.html)

## Related threats

- [Adobe Substance 3D Sampler out-of-bounds write in file parsing](https://junglewise.ai/threats/cve-2026-83966-substance3d-sampler-is-affected-by-an-out-of-bounds-write)
- [Adobe Substance 3D Sampler stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-83965-substance3d-sampler-is-affected-by-a-stack-based-buffer-overflow)
- [Adobe Substance 3D Sampler out-of-bounds read](https://junglewise.ai/threats/cve-2026-100131-substance3d-sampler-is-affected-by-an-out-of-bounds-read)
- [Adobe Substance 3D Sampler out-of-bounds read in memory](https://junglewise.ai/threats/cve-2026-100130-substance3d-sampler-is-affected-by-an-out-of-bounds-read)
- [Adobe Substance3D Sampler heap buffer overflow](https://junglewise.ai/threats/cve-2026-83959-adobe-substance3d-sampler-heap-buffer-overflow)