Quick answers
- Is CVE-2026-83966 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-83966 being exploited in the wild.
- How severe is CVE-2026-83966?
- High severity, with a CVSS score of 7.8, published 13 October 2026.
- Which products and versions are affected?
- Adobe Substance 3D Sampler 6.0.3 and earlier.
- Is there a fix for CVE-2026-83966?
- Yes: fixed in Adobe Substance 3D Sampler 6.0.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-83966 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-83966?
- Check whether you run Adobe Substance 3D 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.
How to fix
- Fixed in: Adobe Substance 3D Sampler 6.0.4
Technical details
CVE-2026-83966 is an out-of-bounds write (CWE-787) in Substance 3D Sampler's file parsing logic. The vulnerability requires local access and user interaction (opening a malicious file); no authentication or elevated privileges are needed. Exploitation results in arbitrary code execution in the context of the current user, with a CVSS score of 7.8 reflecting high impact on confidentiality, integrity, and availability.
Affected products
- Adobe Substance 3D Sampler 6.0.3 and earlier
Timeline
- 2026-10-13: disclosed