Quick answers
- Is CVE-2026-21338 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-21338 being exploited in the wild.
- How severe is CVE-2026-21338?
- Medium severity, with a CVSS score of 5.5, published 10 February 2026.
- Which products and versions are affected?
- Adobe Substance3D Designer 15.1.0 and earlier.
- Is there a fix for CVE-2026-21338?
- 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-2026-21338 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-21338?
- Check whether you run Adobe Substance 3d Designer or Adobe Substance3D Designer 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
This vulnerability is a null pointer dereference flaw in Substance3D Designer versions 15.1.0 and earlier. The vulnerability is triggered when the application attempts to process a specially crafted file, causing it to dereference a null pointer and crash. Exploitation requires user interaction—specifically, a victim must open a malicious file provided by an attacker. This results in a denial-of-service condition where the application terminates unexpectedly. A patch is available in versions later than 15.1.0.
Affected products
- Adobe Substance3D Designer 15.1.0 and earlier
Timeline
- 2026-02-10: disclosed