Adobe Substance3D Modeler up to 1.22.5 File out-of-bounds

Summaryinfo

A vulnerability classified as problematic has been found in Adobe Substance3D Modeler up to 1.22.5. Affected by this issue is some unknown functionality of the component File Handler. This manipulation causes out-of-bounds. The identification of this vulnerability is CVE-2026-21348. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Adobe Substance3D Modeler up to 1.22.5 and classified as problematic. Affected by this vulnerability is some unknown processing of the component File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

Substance3D - Modeler versions 1.22.5 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.

It is possible to read the advisory at helpx.adobe.com. This vulnerability is known as CVE-2026-21348 since 12/12/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298813 (Adobe Substance 3D Modeler < 1.22.6 Out-of-Bounds Read (APSB26-22)), 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 (298813). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Adobe

Name

• Substance3D Modeler

Version

• 1.22.0
• 1.22.1
• 1.22.2
• 1.22.3
• 1.22.4
• 1.22.5

License

• commercial

Website

• Vendor: https://www.adobe.com/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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