CVE-2026-21303
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
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.
Risk Assessment
The vulnerability could lead to leakage of sensitive data stored in memory, potentially compromising the confidentiality of organizational information. User interaction is required, reducing the risk of automated attacks.
Recommendation
Update Substance3D - Modeler to the latest version and educate users not to open files from untrusted sources.
Other vulnerabilities in Substance3D - Modeler
See all- CVE-2026-21348Medium
Substance3D Modeler versions 1.22.5 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 requires user interaction – the victim must open a malicious file.
- CVE-2026-21302Medium
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.
- CVE-2026-21299High
A vulnerability in Substance3D - Modeler versions 1.22.4 and earlier is caused by an out-of-bounds write, which could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction, specifically opening a malicious file.
- CVE-2026-21298High
The vulnerability in Substance3D - Modeler versions 1.22.4 and earlier is caused by an out-of-bounds write, which could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction, as the victim must open a malicious file.
Original NVD description (English source)
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.

