Out-of-bounds write in Substance 3D Painter - CVE-2026-34676
Published: May 25, 2026
Vulnerability identifier: #VU132246
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-34676
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to out-of-bounds write in Substance 3D Painter when parsing input. A remote attacker can trick the victim into opening crafted content to execute arbitrary code.
User interaction is required to open crafted content.
Affected software
Substance 3D Painter
How to mitigate CVE-2026-34676
Install security update from vendor's website.
Substance 3D Painter - update to 12.0.3