Adobe Substance3D Designer up to 15.1.0 File null pointer dereference

Summaryinfo

A vulnerability was found in Adobe Substance3D Designer up to 15.1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component File Handler. Such manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2026-21336. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Adobe Substance3D Designer up to 15.1.0. It has been rated as problematic. Affected by this issue is an unknown code of the component File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

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.

The advisory is shared for download at helpx.adobe.com. This vulnerability is handled as CVE-2026-21336 since 12/12/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298814 (Adobe Substance 3D Designer <= 15.1.0 Multiple Vulnerabilities (APSB26-19)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (298814). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Adobe

Name

• Substance3D Designer

Version

• 15.0
• 15.1.0

License

• commercial

Website

• Vendor: https://www.adobe.com/

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Once again VulDB remains the best source for vulnerability data.

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