CVE-2026-48432: Adobe Substance3D Designer heap buffer overflow

CVE-2026-48432 · Severity: high · CVSS 7.8 · Published 2026-08-25

Adobe Substance3D Designer, a 3D design and content creation application, contains a heap-based buffer overflow vulnerability that can lead to arbitrary code execution when a user opens a malicious file. An attacker could craft a specially-designed file that, when opened by a legitimate user, executes unauthorized code with the privileges of that user, potentially compromising the system and exposing sensitive design assets or data.

Technologies: Adobe Substance 3d Designer, Adobe Substance3D Designer. Vendors: Adobe.

Quick answers

Is CVE-2026-48432 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-48432 being exploited in the wild.
How severe is CVE-2026-48432?
High severity, with a CVSS score of 7.8, published 25 August 2026.
Which products and versions are affected?
Adobe Substance3D Designer.
Is there a fix for CVE-2026-48432?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-48432 attacked?
It is attacked with local access.
Am I affected by CVE-2026-48432?
Check whether you run Adobe Substance 3d Designer or Adobe Substance3D Designer. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is a heap-based buffer overflow vulnerability in Adobe Substance3D Designer's file parsing logic. The vulnerability occurs when the application processes a malicious file that triggers a buffer overflow in heap memory. The attack requires user interaction—specifically, a victim must open a crafted malicious file for exploitation to occur. Successful exploitation allows an attacker to execute arbitrary code in the context of the current user. No network connectivity is required; the attack surface is limited to local file handling. Adobe has assigned this vulnerability CVE-2026-48432 with a CVSS score of 7.8 (high severity).

Affected products

  • Adobe Substance3D Designer

Timeline

  • 2026-08-25: disclosed

References

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