CVE-2026-21303

Name: CVE-2026-21303
Creator: NVD / NIST
Published: 2026-01-13T21:15:54.117+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2026-21303 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

0.21%

11.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Adobe	Substance 3d Modeler	< 1.22.5

References

https://helpx.adobe.com/security/products/substance3d-modeler/apsb26-08.htmlVendor Advisory

Timeline

Published: Jan 13, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-21303?

How severe is CVE-2026-21303?

CVE-2026-21303 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2026-21303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-21303?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST