CVE-2025-53009: Linuxfoundation Materialx

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. In versions 1.39.2 and below, when parsing an MTLX file with multiple nested nodegraph implementations, the MaterialX XML parsing logic can potentially crash due to stack exhaustion. An attacker could intentionally crash a target program that uses OpenEXR by sending a malicious MTLX file. This is fixed in version 1.39.3.

Affected products

• Linuxfoundation Materialx: version 1.39.2 only

Published 2025-08-01. Last modified 2026-06-17.