PT-2026-2788 · Adobe · Substance3D - Painter

Jann Horn · Published 2026-01-13 · Updated 2026-01-13 · CVE-2026-21305

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Substance3D - Painter versions 11.0.3 and earlier

Description The software contains an out-of-bounds write issue that may allow for arbitrary code execution with the privileges of the current user. Successful exploitation requires a user to open a specially crafted malicious file.

Recommendations Update Substance3D - Painter to a version later than 11.0.3.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2026-00621

CVE-2026-21305

Affected Products

Substance3D - Painter

References · 5

• https://bdu.fstec.ru/vul/2026-00621 · Security Note
• https://helpx.adobe.com/security/products/substance3d_painter/apsb26-10.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21305 · Security Note
• https://osv.dev/vulnerability/CVE-2026-21305 · Vendor Advisory
• https://twitter.com/CVEnew/status/2011181480245149921 · Twitter Post