CVE-2023-44103Network attack vector

Service data disclosure via Bluetooth out-of-bounds read

Published Oct 11, 2023 · Updated Sep 18, 2024

Out-of-bounds reading in the Bluetooth module of Huawei HarmonyOS and EMUI allows remote attackers to disclose service data. Huawei identifies the locus only as the Bluetooth module and has not published the input, function, or failed bounds check that causes memory beyond the intended buffer to be read. No authentication or user interaction is required according to NVD, and the reported consequence is limited to service confidentiality rather than data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.35%
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 reading in the Bluetooth module of Huawei HarmonyOS and EMUI allows remote attackers to disclose service data. Huawei identifies the locus only as the Bluetooth module and has not published the input, function, or failed bounds check that causes memory beyond the intended buffer to be read. No authentication or user interaction is required according to NVD, and the reported consequence is limited to service confidentiality rather than data modification or service interruption.

The record

CVE
CVE-2023-44103
Published
Oct 11, 2023
Updated
Sep 18, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
HarmonyOS
Classifications
CWE-125, CWE-20
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · HarmonyOSversion=2.0.0; version=2.0.1; version=2.1.0; version=3.0.0; version=4.0.0
MindSpore · EMUIversion=11.0.1; version=12.0.0; version=12.0.1; version=13.0.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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-125Out-of-bounds Read
CWE-20Improper Input Validation

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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