Vulnerability · Published Aug 1, 2025 · Assigned by GitHub_M

CVE-2025-53011MaterialX is Vulnerable to NULL Pointer Dereference due to Unchecked implGraphOutput

Low 2.0

In plain English

A low-severity null pointer dereference in MaterialX from AcademySoftwareFoundation. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.0Low

Exploit odds (30 days)0.6%top 50.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. In version 1.39.2, when parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files. An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file. This is fixed in version 1.39.3.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	materialx	1.39.3	GHSA-7qw8-3vmf-gj32
PyPI	materialx	1.39.3	PYSEC-2026-1607

Affected products (as reported)

Vendor	Product	Versions
AcademySoftwareFoundation	MaterialX	>= 1.39.2, < 1.39.3

Weakness: CWE-476 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

References

https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-7qw8-3vmf-gj32 x_refsource_CONFIRM
https://github.com/AcademySoftwareFoundation/MaterialX/commit/7ac1c71de5187dc29793292b5a8dc6d784192ecf x_refsource_MISC
https://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3 x_refsource_MISC
https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011 x_refsource_MISC