Quick answers
- Is CVE-2026-48423 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-48423 being exploited in the wild.
- How severe is CVE-2026-48423?
- High severity, with a CVSS score of 7.8, published 25 August 2026.
- Which products and versions are affected?
- Adobe Substance3D Sampler.
- Is there a fix for CVE-2026-48423?
- 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-2026-48423 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-48423?
- Check whether you run Adobe Substance 3D Sampler or Adobe Substance3D Sampler. 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 heap-based buffer overflow in Adobe Substance3D Sampler that can be triggered by processing a specially crafted file. The issue allows an attacker to overflow a heap buffer, potentially overwriting adjacent memory structures and achieving arbitrary code execution within the context of the logged-in user. Exploitation requires user interaction—a victim must be tricked into opening a malicious file. No public exploits have been reported in the wild as of the advisory date. Patches are expected to be available through Adobe security updates.
Affected products
- Adobe Substance3D Sampler
Timeline
- 2026-08-25: disclosed