CVE-2024-42039Network attack vector

Confidentiality loss via undisclosed SystemUI access control

Published Sep 4, 2024 · Updated Sep 18, 2025

Improper authorization in Huawei HarmonyOS and EMUI SystemUI allows remote attackers to read service information after user interaction. Huawei has not disclosed the faulty authorization operation, protected resource, or untrusted input in the SystemUI module. HarmonyOS 2.0.0, 2.1.0, 3.0.0, 3.1.0, 4.0.0, and 4.2.0 and EMUI 12.0.0, 13.0.0, and 14.0.0 are affected; integrity and availability impact are not reported.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Huawei HarmonyOS and EMUI SystemUI allows remote attackers to read service information after user interaction. Huawei has not disclosed the faulty authorization operation, protected resource, or untrusted input in the SystemUI module. HarmonyOS 2.0.0, 2.1.0, 3.0.0, 3.1.0, 4.0.0, and 4.2.0 and EMUI 12.0.0, 13.0.0, and 14.0.0 are affected; integrity and availability impact are not reported.

The record

CVE
CVE-2024-42039
Published
Sep 4, 2024
Updated
Sep 18, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-285
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 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=2.0.0
  2. Affected versionversion=2.1.0
  3. Affected versionversion=3.0.0
  4. Affected versionversion=3.1.0
  5. Affected versionversion=4.0.0
  6. Affected versionversion=4.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0.0; version=2.1.0; version=3.0.0; version=3.1.0; version=4.0.0; version=4.2.0
MindSpore · EMUIversion=12.0.0; version=13.0.0; version=14.0.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3Huawei TechnologiesCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization

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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