PT-2026-7422 · Adobe · Substance3D - Stager

Jann Horn · CVE-2026-21341 · Published 2026-02-10 · Updated 2026-02-10

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Substance3D - Stager versions 3.1.6 and earlier

Description An out-of-bounds write issue exists in Substance3D - Stager. Successful exploitation of this issue could lead to arbitrary code execution with the privileges of the current user. User interaction is required, as a user must open a specially crafted malicious file for exploitation to occur.

Recommendations Versions prior to 3.1.6 are affected.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2026-01894

CVE-2026-21341

Affected Products

Substance3D - Stager

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-21341 · Security Note
• https://osv.dev/vulnerability/CVE-2026-21341 · Vendor Advisory
• https://helpx.adobe.com/security/products/substance3d_stager/apsb26-20.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01894 · Security Note
• https://twitter.com/VulmonFeeds/status/2021347393464082911 · Twitter Post