Adobe Substance 3D Designer <= 15.1.0 Multiple Vulnerabilities (APSB26-19)

medium Nessus Plugin ID 298814

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Synopsis

The remote host is missing one or more security updates.

Description

The version of Adobe Substance 3D Designer installed on the remote host is prior or equal to 15.1.0. It is, therefore, affected by multiple vulnerabilities as referenced in the APSB26-19 advisory.

- Substance3D - Designer versions 15.1.0 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. (CVE-2026-21334, CVE-2026-21335)

- Substance3D - Designer versions 15.1.0 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption to services. Exploitation of this issue requires user interaction in that a victim must open a malicious file. (CVE-2026-21336, CVE-2026-21338)

- 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. (CVE-2026-21339, CVE-2026-21340)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Adobe Substance 3D Designer version 15.1.2 or later.

Plugin Details

Severity: Medium

ID: 298814

File Name: adobe_substance_3d_designer_APSB26-19.nasl

Version: 1.3

Type: local

Family: Misc.

Published: 2/12/2026

Updated: 2/13/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-21335

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-21340

Vulnerability Information

CPE: cpe:/a:adobe:substance_3d_designer

Required KB Items: installed_sw/Adobe Substance 3D Designer

Exploit Ease: No known exploits are available

Patch Publication Date: 1/10/2026

Vulnerability Publication Date: 2/10/2026

Reference Information

CVE: CVE-2026-21334, CVE-2026-21335, CVE-2026-21336, CVE-2026-21337, CVE-2026-21338, CVE-2026-21339, CVE-2026-21340

IAVA: 2026-A-0132

Detections

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