CVE-2026-21307
Out-of-Bounds Write in Substance3D Designer 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_designer | to 15.0.3 (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 - Designer versions 15.0.3 and earlier. It can allow an attacker to execute arbitrary code with the privileges of the current user if the user opens a specially crafted malicious file.
How can this vulnerability impact me? :
If exploited, this vulnerability can lead to arbitrary code execution, which means an attacker could run malicious code on your system with your user privileges. This could result in data loss, system compromise, or other malicious activities.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, ensure that you do not open malicious files in Substance3D - Designer versions 15.0.3 and earlier. Update Substance3D - Designer to a version later than 15.0.3 once available. Additionally, educate users to avoid opening untrusted files and consider applying principle of least privilege to limit the impact of potential exploitation.