Which versions of Materialx are affected by CVE-2025-53009?

Organizations using MaterialX should be aware of moderate risk from CVE-2025-53009, a stack-based buffer overflow vulnerability rated CVSS 5.5.. A patch is available.

Is there a public PoC exploit available for CVE-2025-53009?

Yes, a public proof-of-concept exploit is available for CVE-2025-53009. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2025-53009?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Materialx CVE-2025-53009

Q: What is the CVSS score of CVE-2025-53009?

CVE-2025-53009 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.4%.

MEDIUM

Stack-based Buffer Overflow (CWE-121)

2025-08-01 security-advisories@github.com

Buffer Overflow Microsoft Stack Overflow Materialx

5.5

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:04 vuln.today

Patch released

Mar 28, 2026 - 19:04 nvd

Patch available

PoC Detected

Aug 20, 2025 - 21:24 vuln.today

Public exploit code

CVE Published

Aug 01, 2025 - 18:15 nvd

MEDIUM 5.5

DescriptionGitHub Advisory

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.

AnalysisAI

MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-121. 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 include: Linuxfoundation Materialx. Version information: version 1.39.3..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2025-53009 vulnerability details – vuln.today

Back