# CVE-2026-81998: Adobe Substance3D Modeler out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-81998-substance3d-modeler-is-affected-by-an-out-of-bounds-write  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-81998 · Severity: high · CVSS 7.8 · Published 2026-09-22

Substance3D Modeler, Adobe's 3D design and modeling tool, contains an out-of-bounds write vulnerability that allows arbitrary code execution. An attacker can exploit this by crafting a malicious file that, when opened by a user, executes code with the same privileges as the victim, potentially leading to system compromise or data theft.

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-2026-81998 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-81998 being exploited in the wild.

**How severe is CVE-2026-81998?** High severity, with a CVSS score of 7.8, published 22 September 2026.

**Which products and versions are affected?** Adobe Substance3D Modeler <UNKNOWN>.

**Is there a fix for CVE-2026-81998?** 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-2026-81998 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-81998?** 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

An out-of-bounds write flaw in Substance3D Modeler permits an unauthenticated attacker to achieve arbitrary code execution in the context of the current user. The vulnerability requires user interaction—specifically opening a malicious file—and does not involve network-based attack vectors. No authenticated access or special privileges are required beyond the ability to deliver a crafted file to the victim.

## Affected products

- Adobe Substance3D Modeler <UNKNOWN>

## Timeline

- 2026-09-22: disclosed

## References

- [https://helpx.adobe.com/security/products/substance3d-modeler/apsb26-155.html](https://helpx.adobe.com/security/products/substance3d-modeler/apsb26-155.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-2026-79906-substance3d-modeler-is-affected-by-an-out-of-bounds-write)
- [Adobe Substance3D Modeler out-of-bounds read](https://junglewise.ai/threats/cve-2026-21348-adobe-substance3d-modeler-out-of-bounds-read)
- [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)