CVE-2026-48422 Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
Heap-based buffer overflow in Adobe Substance 3D Sampler allows arbitrary code execution when a user opens a malicious file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-48422?
CVE-2026-48422 is a high-severity memory corruption vulnerability in Adobe Substance 3D Sampler, published on 25 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Substance3D - Sampler is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Weakness: CWE-122
Which versions are affected by CVE-2026-48422?
It affects 1 product.
Products include Adobe Substance 3d Sampler.
How do I fix CVE-2026-48422?
No fix has been published for CVE-2026-48422 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-48422 being exploited?
There is no known exploitation of CVE-2026-48422 in the wild and no public exploit code.
Other vulnerabilities in Adobe Substance 3D Sampler
- CVE-2026-83965 Substance3D - Sampler | Stack-based Buffer Overflow (CWE-121)
- CVE-2026-83966 Substance3D - Sampler | Out-of-bounds Write (CWE-787)
- CVE-2026-83959 Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)
- CVE-2026-48417 Substance3D - Sampler | Stack-based Buffer Overflow (CWE-121)
- CVE-2026-48418 Substance3D - Sampler | Out-of-bounds Write (CWE-787)
Sources
Also known as GHSA-v6h6-x6xw-wjgj.