CVE-2026-21306: Adobe Substance 3d Sampler

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

Substance3D - Sampler versions 5.1.0 and earlier are affected by an out-of-bounds write 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 Sampler: before 5.1.3 (fixed in 5.1.3)

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