# CVE-2026-21348: Adobe Substance3D Modeler out-of-bounds read

Source: https://junglewise.ai/threats/cve-2026-21348-adobe-substance3d-modeler-out-of-bounds-read  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-10. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-21348 · Severity: medium · CVSS 5.5 · Published 2026-02-10

Substance3D Modeler is Adobe's 3D design and modeling tool used by creative professionals. A memory-reading vulnerability in versions 1.22.5 and earlier could allow an attacker to extract sensitive information from an application's memory if a user opens a malicious file, potentially exposing credentials, design data, or other confidential information.

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

## Quick answers

**Is CVE-2026-21348 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21348 being exploited in the wild.

**How severe is CVE-2026-21348?** Medium severity, with a CVSS score of 5.5, published 10 February 2026.

**Which products and versions are affected?** Adobe Substance3D Modeler 1.22.5 and earlier.

**Is there a fix for CVE-2026-21348?** 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-2026-21348 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-21348?** Check whether you run Adobe Substance 3d Modeler or Adobe Substance3D Modeler 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.

## Technical details

The vulnerability is an out-of-bounds read in Substance3D Modeler versions 1.22.5 and earlier that allows attackers to read data beyond allocated memory boundaries. The attack requires user interaction—specifically, a victim must open a malicious file—but does not require authentication or special privileges. Successful exploitation could disclose sensitive information stored in the application's memory. Adobe has assigned CVE-2026-21348 with a CVSS v3.1 score of 5.5 (medium severity). A patch is likely available from Adobe's security advisory APSB26-22.

## Affected products

- Adobe Substance3D Modeler 1.22.5 and earlier

## Timeline

- 2026-02-10: disclosed

## References

- [https://helpx.adobe.com/security/products/substance3d-modeler/apsb26-22.html](https://helpx.adobe.com/security/products/substance3d-modeler/apsb26-22.html)

## Related threats

- [Adobe Substance3D Modeler out-of-bounds write](https://junglewise.ai/threats/cve-2026-83963-substance3d-modeler-is-affected-by-an-out-of-bounds-write)
- [Adobe Substance3D Modeler stack buffer overflow](https://junglewise.ai/threats/cve-2026-83962-substance3d-modeler-is-affected-by-a-stack-based-buffer-overflow)
- [Adobe Substance3D Modeler out-of-bounds write](https://junglewise.ai/threats/cve-2026-81998-substance3d-modeler-is-affected-by-an-out-of-bounds-write)
- [Adobe Substance3D Modeler out-of-bounds write](https://junglewise.ai/threats/cve-2026-79906-substance3d-modeler-is-affected-by-an-out-of-bounds-write)
- [Adobe Substance3D Modeler out-of-bounds read in file parsing](https://junglewise.ai/threats/cve-2026-21303-adobe-substance3d-modeler-out-of-bounds-read-in-file-parsing)