CVE-2025-53009: MaterialX is an open standard for the exchange of rich material and look-development content across applicatio

This week

HIGH 7.5REMOTEWATCHLISTDOWNGRADE

CVE-2025-53009 is a high-severity flaw (CVSS 7.5) affecting materialx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-121
Published	2025-08-01
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: linuxfoundation

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-01 18:15 UTCPublished CVE record published
2026-06-17 09:37 UTCUpdated Record last modified

linuxfoundation materialx DOWNGRADE

Affected: 1.39.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.39.2

1. Check installed version

apt-cache policy materialx || rpm -q materialx || materialx --version

2. No fixed release: DOWNGRADE to a release before 1.39.2 (Debian / Ubuntu)

apt-cache madison materialx sudo apt install materialx=<VERSION_BEFORE_1.39.2> sudo apt-mark hold materialx

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list materialx sudo dnf downgrade materialx-<VERSION_BEFORE_1.39.2> sudo dnf versionlock add materialx

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-53009?

materialx: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-53009 being exploited?

CVE-2025-53009 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-53009 affect?

CVE-2025-53009 affects materialx. Severity is high (CVSS 7.5). 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 Mate

How urgent is CVE-2025-53009?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

CVE-2025-53012 HIGH 7.5 DOWNGRADE MaterialX is an open standard for the exchange of rich material and look-development content across applicatio
CVE-2025-53011 HIGH 7.5 DOWNGRADE MaterialX is an open standard for the exchange of rich material and look-development content across applicatio
CVE-2025-53010 HIGH 7.5 DOWNGRADE MaterialX is an open standard for the exchange of rich material and look-development content across applicatio

References

← Back to latest CVEs