CVE-2026-21306: Substance3D - Sampler | Out-of-bounds Write (CWE-787)
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Substance3D - Samplerto a version that resolves this vulnerability.Fixed in 5.1.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-21306?
CVE-2026-21306 has a high severity rating due to the potential for arbitrary code execution.
How do I fix CVE-2026-21306?
To fix CVE-2026-21306, update Substance3D - Sampler to version 5.1.1 or later.
What is the impact of CVE-2026-21306?
CVE-2026-21306 allows an attacker to execute arbitrary code in the context of the current user with interaction.
Which versions of Substance3D - Sampler are affected by CVE-2026-21306?
Substance3D - Sampler versions 5.1.0 and earlier are affected by CVE-2026-21306.
Does CVE-2026-21306 require user interaction for exploitation?
Yes, exploitation of CVE-2026-21306 requires user interaction.