Out-of-Bounds Write Vulnerability in Substance3D Designer by Adobe
CVE-2026-21334

7.8HIGH

Key Information:

Vendor

Adobe
Status
Substance3d - Designer
Vendor
CVE Published:
10 February 2026

What is CVE-2026-21334?

Adobe Substance3D Designer versions 15.1.0 and earlier contain a vulnerability allowing out-of-bounds write conditions. This flaw could enable an attacker to execute arbitrary code within the context of the current user, necessitating user interaction through the opening of a specially crafted file to exploit the issue. Users are advised to evaluate the risks and update their software to mitigate potential threats.

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Deploy the Patch

Affected Version(s)

Substance3D - Designer 0 <= 15.1.0

References

https://helpx.adobe.com/security/products/substance3d_des...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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