CVE-2026-21306

Severity
7.8HIGH
EPSS
0.0%
top 87.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJan 13

Description

Substance3D - Sampler versions 5.1.0 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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

🔴Vulnerability Details

2
GHSA
GHSA-5fw5-2cfw-cr9r: Substance3D - Sampler versions 52026-01-13
CVEList
Substance3D - Sampler | Out-of-bounds Write (CWE-787)2026-01-13

🕵️Threat Intelligence

1
Wiz
CVE-2026-21306 Impact, Exploitability, and Mitigation Steps | Wiz
CVE-2026-21306 (HIGH CVSS 7.8) | Substance3D - Sampler versions 5.1. | cvebase.io