NVD / CVE Program· CNA VulDB

CVE-2025-3016: Open Asset Import Library Assimp MDL File MDLMaterialLoader.cpp ParseTextureColorData resource consumption

Noroxi assessment

Priority: Monitor (action score 21/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.66% (FIRST EPSS); higher than 51.8% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No special conditions are required; it is repeatable.
Fixed version: Open Asset Import Library Assimp 6.0.

Low priority for now. Upgrade to Open Asset Import Library Assimp 6.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function Assimp::MDLImporter::ParseTextureColorData of the file code/AssetLib/MDL/MDLMaterialLoader.cpp of the component MDL File Handler. The manipulation of the argument mWidth/mHeight leads to resource consumption. The attack can be initiated remotely. Upgrading to version 6.0 is able to address this issue. The name of the patch is 5d2a7482312db2e866439a8c05a07ce1e718bed1. It is recommended to apply a patch to fix this issue.

MediumCVSS 5.3 · v4.0—No exploit Fix available

Published: Mar 31, 2025
Updated: Jun 17, 2026
EPSS: 0.6% · 51th percentile
CWE: CWE-400

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.6%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · VulDB: 5.3; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
assimp	assimp	cpe:2.3:a:assimp:assimp

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

assimp assimp5.4.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

Open Asset Import Library Assimp
- 5.4.3affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	assimp	from 0	—
Debian:14	assimp	before 6.0.2+ds-1	6.0.2+ds-1
openSUSE:Leap 15.6	assimp	before 5.3.1-bp156.3.9.1	5.3.1-bp156.3.9.1
openSUSE:Tumbleweed	assimp	before 5.4.3-5.1	5.4.3-5.1
PyPI	pyassimp	up to and including 5.4.3	—
SUSE:Package Hub 15 SP6	assimp	before 5.3.1-bp156.3.9.1	5.3.1-bp156.3.9.1

Same product

assimp: all records

Other highest-scoring records for the same primary product.

CVE-2022-45748An issue was discovered with assimp 5.1.4, a use after free occurred in function ColladaParser::ExtractDataObjectFromChannel in file /code/A
35Monitor
CVE-2024-45679Heap-based buffer overflow vulnerability in Assimp versions prior to 5.4.3 allows a local attacker to execute arbitrary code by importing a
33Monitor
CVE-2024-48423An issue in assimp v.5.4.3 allows a local attacker to execute arbitrary code via the CallbackToLogRedirector function within the Assimp libr
31Monitor

Published before and after this one in the same product

← EarlierCVE-2025-2757Mar 25, 2025 · Open Asset Import Library Assimp MD5 File MD5Parser.cpp AI_MD5_PARSE_STRING_IN_QUOTATION heap-based overflow
21Monitor
← EarlierCVE-2025-3015Mar 31, 2025 · Open Asset Import Library Assimp ASE File ASELoader.cpp BuildUniqueRepresentation out-of-bounds
21Monitor
Later →CVE-2025-3158Apr 3, 2025 · Open Asset Import Library Assimp LWO File LWOAnimation.cpp UpdateAnimRangeSetup heap-based overflow
19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Open Asset Import Library Assimp	6.0 · description	Vendor (CNA)
debian:assimp	6.0.2+ds-1 · Debian:14	Package registry (OSV)
opensuse:assimp	5.3.1-bp156.3.9.1 · openSUSE:Leap 15.6	Package registry (OSV)
suse:assimp	5.3.1-bp156.3.9.1 · SUSE:Package Hub 15 SP6	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

d3ng03 (VulDB User)reporter

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-11274188 days apartOpen Asset Import Library Assimp Q3DLoader.cpp InternReadFile allocation of resources
7Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: P
Scope: X

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Endpoint Denial of ServiceT1499

Change log

Fix✗ → ✓Sep 28, 2026, 10:10 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/assimp/assimp/commit/5d2a7482312db2e866439a8c05a07ce1e718bed1

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records