CVE-2026-24919

Local availability impact via DFX out-of-bounds write

Published Feb 6, 2026 · Updated Feb 6, 2026

Out-of-bounds write in Huawei EMUI and HarmonyOS DFX modules allows local users with high privileges to cause unspecified availability impact. Huawei has not disclosed the affected function, buffer, input, or erroneous write operation beyond locating the flaw in the DFX module. No user interaction is required; Huawei has not specified whether availability loss involves a crash, hang, reboot, or another interruption.

CVSS severity6.0
Medium
EPSS probability0.11%
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 write in Huawei EMUI and HarmonyOS DFX modules allows local users with high privileges to cause unspecified availability impact. Huawei has not disclosed the affected function, buffer, input, or erroneous write operation beyond locating the flaw in the DFX module. No user interaction is required; Huawei has not specified whether availability loss involves a crash, hang, reboot, or another interruption.

The record

CVE
CVE-2026-24919
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2026Record 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=4.0.0
  2. Affected versionversion=4.2.0
  3. Affected versionversion=4.3.0
  4. Affected versionversion=4.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MindSpore · HarmonyOSversion=4.0.0; version=4.2.0; version=4.3.0; version=4.3.1
MindSpore · EMUIversion=14.0.0; version=14.2.0; version=15.0.0

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.0Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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