CVE-2023-39388Network attack vector

Home-screen denial of service via unchecked PMS input

Published Aug 13, 2023 · Updated Oct 10, 2024

Buffer overflow in affected Huawei HarmonyOS and EMUI releases allows remote attackers to make the home screen unavailable via PMS input. The PMS module fails to strictly validate input parameters before performing a size-unchecked buffer copy, permitting an invalid memory operation. The network path requires no authentication or user interaction, and the documented consequence is limited to loss of home-screen availability.

CVSS severity7.5
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in affected Huawei HarmonyOS and EMUI releases allows remote attackers to make the home screen unavailable via PMS input. The PMS module fails to strictly validate input parameters before performing a size-unchecked buffer copy, permitting an invalid memory operation. The network path requires no authentication or user interaction, and the documented consequence is limited to loss of home-screen availability.

The record

CVE
CVE-2023-39388
Published
Aug 13, 2023
Updated
Oct 10, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
HarmonyOS
Classifications
CWE-120, CWE-20, CWE-1285
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
  5. Affected versionversion=3.1.0

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=3.1.0
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: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.

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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-20Improper Input Validation
CWE-1285Improper Validation of Specified Index, Position, or Offset in Input

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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