CVE-2025-54634

Service interruption via faulty huge-page separation

Published Aug 6, 2025 · Updated Aug 6, 2025

Improper exceptional-condition handling in Huawei HarmonyOS 5.0.1 and 5.1.0 allows local users to interrupt service. During huge-page separation, the affected implementation processes abnormal conditions incorrectly; Huawei has not disclosed the responsible function or resulting failure mode. Exploitation requires local execution, and the published record limits the reported consequence to availability without identifying whether the device hangs, crashes, or reboots.

CVSS severity8.0
High
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper exceptional-condition handling in Huawei HarmonyOS 5.0.1 and 5.1.0 allows local users to interrupt service. During huge-page separation, the affected implementation processes abnormal conditions incorrectly; Huawei has not disclosed the responsible function or resulting failure mode. Exploitation requires local execution, and the published record limits the reported consequence to availability without identifying whether the device hangs, crashes, or reboots.

The record

CVE
CVE-2025-54634
Published
Aug 6, 2025
Updated
Aug 6, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-755, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.1
  2. Affected versionversion=5.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=5.0.1; version=5.1.0

Published CVSS scores

8.0Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-755Improper Handling of Exceptional Conditions
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo