CVE-2026-21305
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 - 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.
Analysis
Arbitrary code execution in Adobe Substance 3D Painter versions 11.0.3 and earlier through an out-of-bounds write flaw allows attackers to execute commands with user privileges when a victim opens a crafted file. The vulnerability requires user interaction but carries high impact potential across confidentiality, integrity, and availability. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.
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