CVE-2026-21305: Adobe Substance 3d Painter

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

Substance3D - Painter versions 11.0.3 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 Painter: before 11.1.2 (fixed in 11.1.2)

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