CVE-2026-34674: Adobe Substance 3d Painter

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Substance3D - Sampler versions 5.1.3 and earlier are affected by a Heap-based Buffer Overflow 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 Painter: up to and including 5.1.3

Published 2026-08-27. Last modified 2026-08-31.