---
id: CVE-2026-21340
title: >-
  Substance3D - Designer versions 15.1.0 and earlier are affected by an
  out-of-bounds read vulnerability that could lead to memory exposure
summary: >-
  Substance3D - Designer versions 15.1.0 and earlier are affected by an
  out-of-bounds read vulnerability that could lead to memory exposure. An
  attacker could leverage this vulnerability to disclose sensitive information
  stored in memory. …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'
cwe:
  - CWE-125
vendor: adobe
product: substance_3d_designer
affected:
  - substance_3d_designer < 15.1.2
patched:
  - substance_3d_designer 15.1.2
published: '2026-02-10'
updated: '2026-08-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21340'
references:
  - url: >-
      https://helpx.adobe.com/security/products/substance3d_designer/apsb26-19.html
    label: psirt@adobe.com
tags:
  - nvd
epss: 0.00159
epssPercentile: 0.04241
ingestedAt: '2026-08-27T21:08:16.477Z'
---

## Overview

Substance3D - Designer versions 15.1.0 and earlier are affected by an out-of-bounds read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

## Affected

- `substance_3d_designer < 15.1.2`

## Remediation

Upgrade past the affected range:

- `substance_3d_designer 15.1.2`