CVE-2026-21287: Adobe Substance 3d Stager

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Substance3D - Stager versions 3.1.5 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe Substance 3d Stager: before 3.1.6 (fixed in 3.1.6)

Published 2026-01-13. Last modified 2026-08-28.