# CVE-2026-27273: Adobe Substance3D Stager out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-27273-adobe-substance3d-stager-out-of-bounds-write  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-10. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-27273 · Severity: high · CVSS 7.8 · Published 2026-03-10

Substance3D Stager is Adobe's 3D asset staging and configuration tool used by design and creative professionals. Versions 3.1.7 and earlier contain an out-of-bounds write vulnerability that allows an attacker to execute arbitrary code with the privileges of the user running the application. The vulnerability requires a victim to open a malicious file, making it exploitable through social engineering or phishing attacks.

Technologies: [Adobe Substance 3d Stager](https://junglewise.ai/threats/technologies/substance-3d-stager), [Adobe Substance3D Stager](https://junglewise.ai/threats/technologies/substance3d-stager), [Apple macOS](https://junglewise.ai/threats/technologies/macos), [Microsoft Windows](https://junglewise.ai/threats/technologies/windows). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe), [Apple](https://junglewise.ai/threats/vendors/apple), [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-27273 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27273 being exploited in the wild.

**How severe is CVE-2026-27273?** High severity, with a CVSS score of 7.8, published 10 March 2026.

**Which products and versions are affected?** Adobe Substance3D Stager 3.1.7 and earlier.

**Is there a fix for CVE-2026-27273?** 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-2026-27273 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-27273?** Check whether you run Adobe Substance 3d Stager, Adobe Substance3D Stager, Apple macOS or one of the others listed 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 a classic out-of-bounds write (CWE-787) in Substance3D Stager that permits memory corruption when processing specially crafted input files. The attack vector is local and requires user interaction—specifically, a victim must open a malicious file in the application. Successful exploitation allows an attacker to write arbitrary data to memory outside allocated buffers, leading to arbitrary code execution in the context of the current user. No authentication or privileged access is required prior to the attack; only the ability to get the user to open a malicious file. Adobe has issued patches for affected versions.

## Affected products

- Adobe Substance3D Stager 3.1.7 and earlier

## Timeline

- 2026-03-10: disclosed: Vulnerability published on NVD
- 2026-03-10: advisory: Adobe security advisory APSB26-29 issued

## References

- [https://helpx.adobe.com/security/products/substance3d_stager/apsb26-29.html](https://helpx.adobe.com/security/products/substance3d_stager/apsb26-29.html)

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