Medium severity5.3NVD Advisory· Published Jun 16, 2025· Updated Apr 29, 2026

CVE-2025-6120

Description

A vulnerability classified as critical was found in Open Asset Import Library Assimp up to 5.4.3. Affected by this vulnerability is the function read_meshes in the library assimp/code/AssetLib/MDL/HalfLife/HL1MDLLoader.cpp. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.

Affected products

Assimp/Assimp
cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
Range: <=5.4.3

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/assimp/assimp/issues/6220nvdExploitIssue TrackingThird Party Advisory
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdThird Party AdvisoryVDB Entry
github.com/assimp/assimp/issues/6220nvdIssue Tracking
vuldb.comnvdPermissions Required

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

5.3/ 10

CVSS v41.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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: Local
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

Probability of exploitation in the next 30 days.

0.13%

VYPR risk score

Composite of severity, exploitation, and reach.

0.34medium

cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122
Heap-based Buffer Overflow

CVE ID

CVE-2025-6120

Source code

github.com/user-attachments/files/20605340/read_meshes_reproduce.tar.gz