CVE-2025-54273 Substance3D - Viewer | Out-of-bounds Write (CWE-787)

High 7.8 Published 14 Oct 2025 Updated 26 Feb 2026

An out-of-bounds write vulnerability in Substance3D Viewer allows arbitrary code execution if a user opens a malicious file.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-54273?

CVE-2025-54273 is a high-severity memory corruption vulnerability in Adobe Substance3D - Viewer, published on 14 Oct 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Substance3D - Viewer versions 0.25.2 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.

Weakness: CWE-787

Which versions are affected by CVE-2025-54273?

It affects 1 product.

Products include Adobe Substance 3d Viewer.

How do I fix CVE-2025-54273?

No fix has been published for CVE-2025-54273 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-54273 being exploited?

There is no known exploitation of CVE-2025-54273 in the wild and no public exploit code.

Sources

Also known as GHSA-vm43-mmm6-f295.