What is CVE-2026-21340?

CVE-2026-21340 is a medium-severity vulnerability in Adobe Substance_3d_designer, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-02-10.

How severe is CVE-2026-21340?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Out-of-bounds Read in Adobe Substance_3d_designer

CVE-2026-21340

Substance3D - Designer versions 15.1.0 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. Ex…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (8.6th 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

Adobe Substance_3d_designer
Adobe Substance3d - Designer — versions 0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

psirt@adobe.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-21340?: CVE-2026-21340 is a medium-severity vulnerability in Adobe Substance_3d_designer, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-02-10.
How severe is CVE-2026-21340?: Medium severity. CVSS v3 base score is 5.5 out of 10.