Open Asset Import Library Assimp up to 5.4.3 BVHLoader.cpp ReadNodeChannels pNode use after free
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.0 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as critical has been found in Open Asset Import Library Assimp up to 5.4.3. Affected by this issue is the function Assimp::BVHLoader::ReadNodeChannels in the library assimp/code/AssetLib/BVH/BVHLoader.cpp. The manipulation of the argument pNode results in use after free.
This vulnerability was named CVE-2025-6119. The attack needs to be approached locally. In addition, an exploit is available.
The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.
Details
A vulnerability classified as critical has been found in Open Asset Import Library Assimp up to 5.4.3. Affected is the function Assimp::BVHLoader::ReadNodeChannels in the library assimp/code/AssetLib/BVH/BVHLoader.cpp. The manipulation of the argument pNode with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-6119. The exploitability is told to be easy. The attack needs to be approached locally. Technical details and a public exploit are known.
The exploit is shared for download at github.com. It is declared as proof-of-concept. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18390). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.0
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 5.3
CNA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
06/15/2025 🔍06/15/2025 🔍
06/16/2025 🔍
Sources
Advisory: 6219Status: Not defined
Confirmation: 🔍
CVE: CVE-2025-6119 (🔍)
GCVE (CVE): GCVE-0-2025-6119
GCVE (VulDB): GCVE-100-312588
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/15/2025 12:23Updated: 06/16/2025 16:17
Changes: 06/15/2025 12:23 (60), 06/16/2025 13:27 (30), 06/16/2025 16:17 (1)
Complete: 🔍
Submitter: Rulkallos
Cache ID: 216::103
Submit
Accepted
- Submit #591233: Open Asset Import Library Assimp 5.4.3 Use After Free (by Rulkallos)
Once again VulDB remains the best source for vulnerability data.
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