# CVE-2026-48379: Adobe Substance 3D Painter stack-based buffer overflow

Source: https://junglewise.ai/threats/cve-2026-48379-substance3d-painter-is-affected-by-a-stack-based-buffer-overflow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-27. Updated: 2026-10-27  
License: CC BY 4.0 with a link back

CVE-2026-48379 · Severity: high · CVSS 7.8 · Published 2026-10-27

Substance 3D Painter, a 3D modeling and painting software used by creative professionals, contains a stack-based buffer overflow vulnerability that could allow attackers to execute arbitrary code on the user's system. An attacker must trick a user into opening a malicious file to trigger the exploit, potentially compromising the creative professional's system and any projects stored on it.

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

## Quick answers

**Is CVE-2026-48379 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48379 being exploited in the wild.

**How severe is CVE-2026-48379?** High severity, with a CVSS score of 7.8, published 27 October 2026.

**Which products and versions are affected?** Adobe Substance 3d Painter 12.1.5 and earlier.

**Is there a fix for CVE-2026-48379?** Yes: fixed in Substance 3D Painter 12.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-48379 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-48379?** Check whether you run Adobe Substance 3d Painter 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 Substance 3D Painter 12.2

## Technical details

A stack-based buffer overflow (CWE-121) in Substance 3D Painter allows arbitrary code execution in the context of the current user when a malicious file is opened. The vulnerability requires local access and user interaction to open a crafted file, but no elevated privileges are needed. An attacker gains code execution with the user's privileges once the file is opened.

## Affected products

- Adobe Substance 3D Painter 12.1.5 and earlier

## Timeline

- 2026-10-27: disclosed

## References

- [https://www.adobe.com/trust/security/products/substance3d-painter/apsb26-178.html](https://www.adobe.com/trust/security/products/substance3d-painter/apsb26-178.html)

## Related threats

- [Adobe Substance 3D Painter out-of-bounds read in file parsing](https://junglewise.ai/threats/cve-2026-48380-substance3d-painter-is-affected-by-an-out-of-bounds-read)
- [Adobe Substance3D Sampler heap buffer overflow](https://junglewise.ai/threats/cve-2026-34674-adobe-substance3d-sampler-heap-buffer-overflow)
- [Adobe Substance3D Painter out-of-bounds write](https://junglewise.ai/threats/cve-2026-75770-adobe-substance3d-painter-out-of-bounds-write)
- [Adobe Substance 3D Painter heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-75769-adobe-substance-3d-painter-heap-based-buffer-overflow)
- [Adobe Substance3D Painter untrusted search path arbitrary code execution](https://junglewise.ai/threats/cve-2026-75768-adobe-substance3d-painter-untrusted-search-path-arbitrary-code)