CVE-2024-54099

File disclosure and modification via replacement

Published Dec 12, 2024 · Updated Sep 18, 2025

File replacement in Huawei HarmonyOS 3.0.0, 3.1.0, 4.0.0, and 4.2.0 and EMUI 13.0.0 and 14.0.0 allows local users to alter device files. Huawei identifies externally accessible files or directories but has not disclosed the affected component, file path, or operation that permits replacement. Exploitation requires high local privileges and no user interaction; successful attacks disclose information and modify file contents without affecting availability.

CVSS severity6.7
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

File replacement in Huawei HarmonyOS 3.0.0, 3.1.0, 4.0.0, and 4.2.0 and EMUI 13.0.0 and 14.0.0 allows local users to alter device files. Huawei identifies externally accessible files or directories but has not disclosed the affected component, file path, or operation that permits replacement. Exploitation requires high local privileges and no user interaction; successful attacks disclose information and modify file contents without affecting availability.

The record

CVE
CVE-2024-54099
Published
Dec 12, 2024
Updated
Sep 18, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-552, T1565.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 12, 2024CVE 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=3.0.0
  2. Affected versionversion=3.1.0
  3. Affected versionversion=4.0.0
  4. Affected versionversion=4.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MindSpore · HarmonyOSversion=3.0.0; version=3.1.0; version=4.0.0; version=4.2.0
MindSpore · EMUIversion=13.0.0; version=14.0.0

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
6.7Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

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-552Files or Directories Accessible to External Parties
T1565.001Stored Data Manipulation

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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