CVE-2026-21340: Adobe Substance 3d Designer

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe Substance 3d Designer: before 15.1.2 (fixed in 15.1.2)

Published 2026-02-10. Last modified 2026-08-28.