CVE-2026-27274: Adobe Substance3D Stager out-of-bounds write

CVE-2026-27274 · Severity: high · CVSS 7.8 · Published 2026-03-10

Adobe Substance3D Stager is a 3D asset creation and staging tool used by design professionals. Versions 3.1.7 and earlier contain an out-of-bounds write flaw that allows an attacker to execute arbitrary code by tricking a user into opening a malicious file, potentially compromising the designer's system and gaining access to project files and credentials.

Technologies: Adobe Substance 3d Stager, Adobe Substance3D Stager, Apple macOS, Microsoft Windows. Vendors: Adobe, Apple, Microsoft.

Quick answers

Is CVE-2026-27274 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-27274 being exploited in the wild.
How severe is CVE-2026-27274?
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-2026-27274?
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-2026-27274 attacked?
It is attacked with local access.
Am I affected by CVE-2026-27274?
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 an out-of-bounds write flaw in Substance3D Stager versions 3.1.7 and earlier. The vulnerability requires user interaction—a victim must open a malicious file crafted to trigger the out-of-bounds write condition. Successful exploitation allows an attacker to execute arbitrary code in the security context of the logged-in user. This is a file-based attack vector that does not require network access or prior authentication. Adobe has released security advisories addressing this issue (APSB26-29).

Affected products

  • Adobe Substance3D Stager 3.1.7 and earlier

Timeline

  • 2026-03-10: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.