Out-of-bounds Read in Adobe Substance 3d Modeler
CVE-2026-21303
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.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- psirt@adobe.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-21303?
- CVE-2026-21303 is a medium-severity vulnerability in Adobe Substance 3d Modeler, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-01-13.
- How severe is CVE-2026-21303?
- Medium severity. CVSS v3 base score is 5.5 out of 10.