CVE-2026-21334
HIGHCVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
Substance3D - Designer versions 15.1.0 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.
Analysis
Arbitrary code execution in Substance 3D Designer 15.1.0 and earlier through an out-of-bounds write vulnerability that requires a user to open a malicious file. An attacker can execute code with the privileges of the targeted user by crafting a specially designed file. …
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Remediation
Within 24 hours: Issue security alert to all Substance3D Designer users warning against opening files from untrusted sources; disable the application if not business-critical. Within 7 days: Inventory all affected systems and restrict Substance3D access to essential personnel only; implement file intake controls. …
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External POC / Exploit Code
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