Out-of-Bounds Read in Open Asset Import Library by Assimp
CVE-2025-5203

4.8MEDIUM

Key Information:

Vendor

Open Asset Import Library

Status
Assimp
Vendor
CVE Published:
26 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5203?

A vulnerability has been identified in Open Asset Import Library Assimp version 5.4.3, specifically within the SkipSpaces function located in the ParsingUtils.h file. This flaw allows for an out-of-bounds read condition when certain input scenarios are exploited. Local access is necessary to exploit this vulnerability, which has been made public. The discovery of this issue has prompted the project maintainers to consolidate similar Fuzzer bugs for addressing in future updates, underlining the importance of robust software review and testing practices.

Affected Version(s)

Assimp 5.4.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-5203 - Proof of Concept

References

https://vuldb.com/?id.310292
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310292
signaturepermissions-required
https://vuldb.com/?submit.578012
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-5203 : Out-of-Bounds Read in Open Asset Import Library by Assimp