CVE-2023-3456Network attack vector

Kernel-address disclosure via hang detector input validation

Published Jul 6, 2023 · Updated Nov 21, 2024

Improper input validation in Huawei HarmonyOS and EMUI allows remote attackers to disclose kernel raw addresses through the hang detector. HarmonyOS 2.0.0, 2.0.1, 2.1.0, 3.0.0, and 3.1.0 and EMUI 12.0.0, 12.0.1, and 13.0.0 are affected; Huawei has not published which input is insufficiently validated or how the addresses enter observable output. Network access without authentication or user interaction is sufficient; the documented consequence is kernel-address disclosure only.

CVSS severity5.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Huawei HarmonyOS and EMUI allows remote attackers to disclose kernel raw addresses through the hang detector. HarmonyOS 2.0.0, 2.0.1, 2.1.0, 3.0.0, and 3.1.0 and EMUI 12.0.0, 12.0.1, and 13.0.0 are affected; Huawei has not published which input is insufficiently validated or how the addresses enter observable output. Network access without authentication or user interaction is sufficient; the documented consequence is kernel-address disclosure only.

The record

CVE
CVE-2023-3456
Published
Jul 6, 2023
Updated
Nov 21, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-668, CWE-20
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 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
  5. Affected versionversion=3.1.0

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; version=3.1.0
MindSpore · EMUIversion=12.0.0; version=12.0.1; version=13.0.0

Published CVSS scores

5.3NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 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-668Exposure of Resource to Wrong Sphere
CWE-20Improper Input Validation

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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