CVE-2024-56456

Service interruption via unchecked glTF buffer copy

Published Jan 8, 2025 · Updated Jan 8, 2025

Buffer overflow in the 3D engine module in Huawei HarmonyOS 5.0.0 allows local users to interrupt service via a crafted glTF model. During glTF model loading, the module copies an input buffer without verifying that its size fits the destination buffer; Huawei has not identified the affected function or parameter. Local access is required, but no privileges or user interaction are required; successful exploitation can interrupt the affected device's 3D service.

CVSS severity6.8
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the 3D engine module in Huawei HarmonyOS 5.0.0 allows local users to interrupt service via a crafted glTF model. During glTF model loading, the module copies an input buffer without verifying that its size fits the destination buffer; Huawei has not identified the affected function or parameter. Local access is required, but no privileges or user interaction are required; successful exploitation can interrupt the affected device's 3D service.

The record

CVE
CVE-2024-56456
Published
Jan 8, 2025
Updated
Jan 8, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-120, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=5.0.0

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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