CVE-2026-21305
Out-of-Bounds Write in Substance3D Painter Enables Code Execution
Publication date: 2026-01-13
Last updated on: 2026-01-13
Assigner: Adobe Systems Incorporated
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| adobe | substance3d_painter | to 11.0.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an out-of-bounds write in Substance3D Painter versions 11.0.3 and earlier. It can allow an attacker to execute arbitrary code with the privileges of the current user. Exploiting this vulnerability requires the victim to open a malicious file, meaning user interaction is necessary.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow an attacker to run arbitrary code on your system with your user privileges. This could lead to unauthorized actions such as installing malware, stealing data, or damaging your system.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, ensure that you do not open malicious files in Substance3D - Painter versions 11.0.3 and earlier. Updating to a version later than 11.0.3, if available, is recommended to fix the out-of-bounds write vulnerability. Additionally, exercise caution with files received from untrusted sources to prevent exploitation requiring user interaction.