Product:
Substance3D – Painter
Summary
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.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-21305 |
Exploitation
To exploit this vulnerability, an attacker must create a malicious file that, when opened by the victim using Substance3D – Painter, triggers the out-of-bounds write condition. This requires the victim to be tricked into opening the file, which can lead to arbitrary code execution with the privileges of the current user.
Affected Products
- Substance3D – Painter versions 11.0.3 and earlier: Affected by an out-of-bounds write vulnerability allowing arbitrary code execution.
Mitigation
Users are advised to update to the latest version of Substance3D – Painter to mitigate this vulnerability. Additionally, avoid opening files from untrusted sources to reduce the risk of exploitation.