CVE-2026-21302 Substance3D - Modeler | Out-of-bounds Read (CWE-125)
An attacker can disclose sensitive memory information by tricking a user into opening a malicious file in Substance3D Modeler.
- 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-2026-21302?
CVE-2026-21302 is a medium-severity vulnerability in Adobe Substance3D - Modeler, published on 13 Jan 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 - Modeler versions 1.22.4 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Weakness: CWE-125
Which versions are affected by CVE-2026-21302?
It affects 1 product.
Products include Adobe Substance 3d Modeler.
How do I fix CVE-2026-21302?
No fix has been published for CVE-2026-21302 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21302 being exploited?
There is no known exploitation of CVE-2026-21302 in the wild and no public exploit code.
Other vulnerabilities in Adobe Substance3D - Modeler
- CVE-2026-79906 Substance3D - Modeler | Out-of-bounds Write (CWE-787)
- CVE-2026-81998 Substance3D - Modeler | Out-of-bounds Write (CWE-787)
- CVE-2026-83962 Substance3D - Modeler | Stack-based Buffer Overflow (CWE-121)
- CVE-2026-83963 Substance3D - Modeler | Out-of-bounds Write (CWE-787)
- CVE-2026-21298 Substance3D - Modeler | Out-of-bounds Write (CWE-787)
Sources
Also known as GHSA-f927-pqrx-8p2g.