CVE-2025-53009: academysoftwarefoundation materialx Stack-based Buffer Overflow

Vulnerability summary

CVE-2025-53009 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in academysoftwarefoundation materialx. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 01-08-2025
   PublishedVulnerability first disclosed.
2. 01-08-2025
   Last modifiedVulnerability information updated.

Description

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.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).