CVE-2023-34155Network attack vector

Service interruption via unauthorized calling

Published Jun 19, 2023 · Updated Dec 17, 2024

Unauthorized calling in Huawei HarmonyOS 3.1.0 and EMUI allows remote attackers to interrupt service on affected phones and tablets. Huawei has not published the component, callable interface, or validation failure that permits unauthorized calls. The public record indicates network reachability without authentication or user interaction and bounds the reported consequence to loss of availability.

CVSS severity7.5
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unauthorized calling in Huawei HarmonyOS 3.1.0 and EMUI allows remote attackers to interrupt service on affected phones and tablets. Huawei has not published the component, callable interface, or validation failure that permits unauthorized calls. The public record indicates network reachability without authentication or user interaction and bounds the reported consequence to loss of availability.

The record

CVE
CVE-2023-34155
Published
Jun 19, 2023
Updated
Dec 17, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 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=3.1.0
  2. Affected versionversion=unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=3.1.0; version=unspecified
MindSpore · EMUIversion=unspecified

Published CVSS scores

7.5NVDCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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