CVE-2023-39405Network attack vector

Unauthenticated elevated app execution via out-of-bounds access

Published Aug 13, 2023 · Updated Oct 10, 2024

Out-of-bounds access in the Wi-Fi module of Huawei HarmonyOS and EMUI allows remote attackers to execute apps with elevated privileges. The module reads or writes a parameter beyond its valid bounds, but Huawei has not disclosed the code locus or crafted input that triggers the access. Network access without authentication or user interaction is sufficient on HarmonyOS 2.0.0, 2.0.1, 2.1.0, and 3.0.0 and EMUI 11.0.1, 12.0.0, 12.0.1, and 13.0.0.

CVSS severity9.8
Critical
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in the Wi-Fi module of Huawei HarmonyOS and EMUI allows remote attackers to execute apps with elevated privileges. The module reads or writes a parameter beyond its valid bounds, but Huawei has not disclosed the code locus or crafted input that triggers the access. Network access without authentication or user interaction is sufficient on HarmonyOS 2.0.0, 2.0.1, 2.1.0, and 3.0.0 and EMUI 11.0.1, 12.0.0, 12.0.1, and 13.0.0.

The record

CVE
CVE-2023-39405
Published
Aug 13, 2023
Updated
Oct 10, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-787, CWE-20, T1404
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 2024Record 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=2.0.1
  3. Affected versionversion=2.1.0
  4. Affected versionversion=3.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0.0; version=2.0.1; version=2.1.0; version=3.0.0
MindSpore · EMUIversion=11.0.1; version=12.0.0; version=12.0.1; version=13.0.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-20Improper Input Validation
T1404Exploitation for Privilege Escalation

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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