Cyber Resilience

CVE-2025-3015

Memory Safety in Assimp 5.4.3

Public PoCMemory Safety
Published
31 March 2025
Modified
17 April 2025
Patch / advisory
CVSS Score v4 5.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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
EPSS Score 0.0047 39th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-3015 is a medium-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Assimp Assimp. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Process Injection (T1055); ranked at the 39th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-3015 is a vulnerability in the Open Asset Import Library (Assimp) version 5.4.3 that enables an out-of-bounds read. It affects the Assimp::ASEImporter::BuildUniqueRepresentation function within the file code/AssetLib/ASE/ASELoader.cpp, specifically the ASE File Handler component. The issue arises from manipulation of the mIndices argument, classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-125 (Out-of-bounds Read), with a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L).

The vulnerability can be exploited remotely by an attacker who tricks a user into processing a specially crafted ASE file, as it requires user interaction but no privileges. Successful exploitation leads to limited impacts on confidentiality, integrity, and availability, such as potential information disclosure or denial of service through memory corruption. The exploit has been publicly disclosed and may be used in attacks against applications that rely on Assimp for ASE file parsing.

Mitigation involves upgrading to Assimp version 6.0, which addresses the issue. A specific patch is available at commit 7c705fde418d68cca4e8eff56be01b2617b0d6fe, and applying it is recommended. Additional details are documented in Assimp GitHub issues #6021 and pull request #6045, along with the VulDB entry.

EU & UK References

Vulnerability Data

A vulnerability classified as critical has been found in Open Asset Import Library Assimp 5.4.3. This affects the function Assimp::ASEImporter::BuildUniqueRepresentation of the file code/AssetLib/ASE/ASELoader.cpp of the component ASE File Handler. The manipulation of the argument mIndices leads to out-of-bounds read.…

more

It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 6.0 is able to address this issue. The patch is named 7c705fde418d68cca4e8eff56be01b2617b0d6fe. It is recommended to apply a patch to fix this issue.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1055 Process Injection Stealth
Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges.
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-5203Same product: Assimp Assimp
CVE-2025-5167Same product: Assimp Assimp
CVE-2025-5166Same product: Assimp Assimp
CVE-2025-2751Same product: Assimp Assimp
CVE-2025-5200Same product: Assimp Assimp
CVE-2025-5202Same product: Assimp Assimp
CVE-2025-5168Same product: Assimp Assimp
CVE-2025-2755Same product: Assimp Assimp
CVE-2025-5165Same product: Assimp Assimp
CVE-2025-2752Same product: Assimp Assimp

Affected Assets

assimp
assimp
5.4.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V17.3.2

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation directly finds out-of-bounds read flaws through static analysis, fuzzing, and dynamic bounds checks.

Secure engineering principles require memory-safe design and coding that structurally avoids buffer-boundary violations.

Process isolation confines the effects of an out-of-bounds read to the compromised process.

Input validation directly enforces bounds checking that stops out-of-bounds reads/writes from being introduced or reached.

Memory protection restricts exploitation impact of buffer overflows without eliminating the underlying coding flaw.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices (bounds checking, safe APIs, reviews) directly prevent this class of flaw.

ID.RA-01 partial match
prevents

Vulnerability scanning and code analysis directly surface buffer-boundary flaws.

ID.RA-08 partial match
prevents

Receiving and triaging vulnerability disclosures commonly includes buffer-related reports.

PR.AT-02 partial match
prevents

Developer training on secure coding reduces introduction of memory-buffer errors.

PR.PS-02 partial match
prevents

Patching replaces vulnerable code containing buffer-boundary defects.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development catches out-of-bounds accesses before release, covering most instances of the weakness.

A.8.15 Logging partial match
finds

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

prevents

Secure development lifecycle mandates memory-safety practices that directly prevent buffer-boundary violations.

prevents

Application security requirements can specify memory-safety rules, but do not prescribe implementation details.

prevents

Secure architecture and engineering principles include memory-safe design patterns that mitigate buffer overflows.

prevents

Secure coding standards explicitly forbid unsafe buffer operations, directly eliminating CWE-119.

References