CVE-2026-24922

Local service interruption via HDC heap overflow

Published Feb 6, 2026 · Updated Feb 6, 2026

Heap buffer overflow in the HDC module in Huawei HarmonyOS 6.0.0 allows local users to interrupt device availability. The published record identifies a heap overflow in HDC but does not disclose the affected function, input field, or unchecked copy operation. Exploitation requires high local privileges and user interaction; Huawei has not specified whether the resulting interruption is a hang, crash, or reboot.

CVSS severity6.9
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in the HDC module in Huawei HarmonyOS 6.0.0 allows local users to interrupt device availability. The published record identifies a heap overflow in HDC but does not disclose the affected function, input field, or unchecked copy operation. Exploitation requires high local privileges and user interaction; Huawei has not specified whether the resulting interruption is a hang, crash, or reboot.

The record

CVE
CVE-2026-24922
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-120, CWE-122
Attack vector
local
Privileges
Unavailable

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=6.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

MindSpore · HarmonyOSversion=6.0.0

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.9Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-122Heap-based Buffer Overflow

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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