Is CVE-2026-34676 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-34676 being exploited in the wild.

How severe is CVE-2026-34676?

High severity, with a CVSS score of 7.8, published 12 May 2026.

Which products and versions are affected?

Adobe Substance 3d Painter 12.0.2 and earlier.

Is there a fix for CVE-2026-34676?

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-2026-34676 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-34676?

Check whether you run Adobe Substance 3d Painter at an affected version. 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.

CVE-2026-34676: Adobe Substance 3D Painter out-of-bounds write

CVE-2026-34676 · Severity: high · CVSS 7.8 · Published 2026-05-12

Adobe Substance 3D Painter, a professional 3D texturing and painting application, is affected by a security flaw that could allow an attacker to take control of a user's computer. To exploit this, an attacker must trick a user into opening a specially crafted malicious file. If successful, the attacker could execute unauthorized commands or install software with the same permissions as the logged-in user.

Technologies: Adobe Substance 3d Painter. Vendors: Adobe.

Quick answers

Is CVE-2026-34676 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-34676 being exploited in the wild.
How severe is CVE-2026-34676?: High severity, with a CVSS score of 7.8, published 12 May 2026.
Which products and versions are affected?: Adobe Substance 3d Painter 12.0.2 and earlier.
Is there a fix for CVE-2026-34676?: 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-2026-34676 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-34676?: Check whether you run Adobe Substance 3d Painter at an affected version. 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

An out-of-bounds write vulnerability (CWE-787) exists in Adobe Substance 3D Painter versions 12.0.2 and earlier. The flaw is triggered when the application processes a specially crafted file, leading to memory corruption. An attacker can leverage this to achieve arbitrary code execution in the context of the current user. Exploitation requires local delivery of a malicious file and user interaction (opening the file). Adobe has addressed this in version 12.0.3.

Affected products

Adobe Substance 3D Painter 12.0.2 and earlier

Timeline

2026-05-12: disclosed
2026-05-12: advisory

References

https://helpx.adobe.com/security/products/substance3d_painter/apsb26-55.html

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