Quick answers
- Is CVE-2026-103837 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103837 being exploited in the wild.
- How severe is CVE-2026-103837?
- High severity, with a CVSS score of 7.8, published 13 October 2026.
- Which products and versions are affected?
- Adobe Substance 3d Stager 3.1.8 and earlier.
- Is there a fix for CVE-2026-103837?
- Yes: fixed in 3.1.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-103837 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-103837?
- Check whether you run Adobe Substance 3d Stager 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: 3.1.9
Technical details
The vulnerability is an out-of-bounds write (CWE-787) in Substance 3D Stager that occurs when the application processes specially crafted input files. Exploitation requires user interaction—a victim must open a malicious file—but no privileges or special network access is needed. Successful exploitation results in arbitrary code execution in the context of the current user. The bulletin indicates this affects versions 3.1.8 and earlier, with a fix available in 3.1.9.
Affected products
- Adobe Substance 3D Stager 3.1.8 and earlier
Timeline
- 2026-10-13: disclosed