Quick answers
- Is CVE-2026-34674 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-34674 being exploited in the wild.
- How severe is CVE-2026-34674?
- High severity, with a CVSS score of 7.8, published 27 August 2026.
- Which products and versions are affected?
- Adobe Substance3D Sampler 5.1.3 and earlier.
- Is there a fix for CVE-2026-34674?
- 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-2026-34674 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-34674?
- Check whether you run Adobe Substance 3d Painter or Adobe Substance3D Sampler 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
A heap-based buffer overflow exists in Adobe Substance3D Sampler versions 5.1.3 and earlier. The vulnerability is triggered when the application processes a specially crafted input file, allowing an attacker to overflow a heap buffer and overwrite adjacent memory. Exploitation requires user interaction—the victim must open a malicious file. Successful exploitation results in arbitrary code execution in the context of the current user. No information on patch availability is provided in the advisory.
Affected products
- Adobe Substance3D Sampler 5.1.3 and earlier
Timeline
- 2026-08-27: disclosed