CVE-2026-21287

HighCVSS 7.8/10Last modified Aug 28, 2026

Description

Substance3D - Stager versions 3.1.5 and earlier are affected by a Use After Free 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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Jan 13, 2026
Last modified
Aug 28, 2026
NVD status
Analyzed

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CVE-2026-21287: High severity, CVSS 7.8 | Vulnix