CVE-2026-48418: Adobe Substance3D Sampler out-of-bounds write

CVE-2026-48418 · Severity: high · CVSS 7.8 · Published 2026-08-25

Adobe Substance3D Sampler is a 3D material creation tool used by designers and artists in digital content production. The application contains an out-of-bounds write vulnerability that could allow an attacker to execute arbitrary code on a user's system when they open a specially crafted malicious file, potentially compromising sensitive project files and system integrity.

Technologies: Adobe Substance 3D Sampler, Adobe Substance3D Sampler. Vendors: Adobe.

Quick answers

Is CVE-2026-48418 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-48418 being exploited in the wild.
How severe is CVE-2026-48418?
High severity, with a CVSS score of 7.8, published 25 August 2026.
Which products and versions are affected?
Adobe Substance3D Sampler.
Is there a fix for CVE-2026-48418?
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-2026-48418 attacked?
It is attacked with local access.
Am I affected by CVE-2026-48418?
Check whether you run Adobe Substance 3D Sampler or Adobe Substance3D Sampler. 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

Substance3D Sampler is affected by an out-of-bounds write vulnerability in file parsing logic. The vulnerability is triggered when a user opens a malicious file, allowing an attacker to write data beyond allocated memory boundaries. Successful exploitation results in arbitrary code execution in the context of the current user. User interaction is required, as a victim must explicitly open the malicious file. No remote exploitation is possible; the attack vector is local and file-based. Patches are available from Adobe.

Affected products

  • Adobe Substance3D Sampler

Timeline

  • 2026-08-25: disclosed: CVE-2026-48418 published

References

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