Substance 3d Designer
CVE-2026-21307
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Substance3D - Designer versions 15.0.3 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
AnalysisAI
Arbitrary code execution in Substance 3D Designer 15.0.3 and earlier results from an out-of-bounds write vulnerability triggered when users open specially crafted files. An attacker can leverage this to execute code with the privileges of the affected user, though exploitation requires social engineering to deliver the malicious file. No patch is currently available.
Technical ContextAI
Classified as CWE-787 (Out-of-bounds Write). Affects Substance 3D Designer. Substance3D - Designer versions 15.0.3 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
RemediationAI
Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible.
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today