CVE-2025-5166

What it is

A vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been classified as problematic. Affected is the function MDCImporter::InternReadFile of the file assimp/code/AssetLib/MDC/MDCLoader.cpp of the component MDC File Parser. The manipulation of the argument pcVerts leads to out-of-bounds read. 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.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. Limited direct impact.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2025-05-26 04:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:47 UTC Last updatedMost recent change to the record

Details

Published

2025-05-26 04:15 UTC

Last modified

2026-06-17 09:47 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Analyzed

Affected

• Assimp 5.4.3

Attack profile CVSS 4.0 · 4.8

Attack vector

Local

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low