CVE-2024-56438

Service interruption via improper memory address protection

Published Jan 8, 2025 · Updated Sep 18, 2025

Memory-safety flaw in Huawei HarmonyOS 3.1.0, 4.0.0, and 4.2.0 and EMUI 14.0.0 allows local users to interrupt service. The HUKS module improperly protects memory addresses, but Huawei has not disclosed the affected function or the operation performed on untrusted input. Exploitation requires local high privileges and no user interaction, and the documented consequence is limited to availability.

CVSS severity6.0
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory-safety flaw in Huawei HarmonyOS 3.1.0, 4.0.0, and 4.2.0 and EMUI 14.0.0 allows local users to interrupt service. The HUKS module improperly protects memory addresses, but Huawei has not disclosed the affected function or the operation performed on untrusted input. Exploitation requires local high privileges and no user interaction, and the documented consequence is limited to availability.

The record

CVE
CVE-2024-56438
Published
Jan 8, 2025
Updated
Sep 18, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-119, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=3.1.0
  2. Affected versionversion=4.0.0
  3. Affected versionversion=4.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MindSpore · HarmonyOSversion=3.1.0; version=4.0.0; version=4.2.0
MindSpore · EMUIversion=14.0.0

Published CVSS scores

6.0Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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