CVE-2025-27536

Local service interruption via type confusion

Published Aug 11, 2025 · Updated Aug 11, 2025

Type confusion in arkcompiler_ets_runtime in OpenHarmony 5.0.3.x allows local users with low privileges to interrupt service. OpenHarmony has not published the affected function or the incompatible resource access that triggers the failure. Exploitation requires local low-privilege access, and the documented consequence is limited to reduced availability rather than data access or modification.

CVSS severity3.3
Low
EPSS probability0.12%
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

Type confusion in arkcompiler_ets_runtime in OpenHarmony 5.0.3.x allows local users with low privileges to interrupt service. OpenHarmony has not published the affected function or the incompatible resource access that triggers the failure. Exploitation requires local low-privilege access, and the documented consequence is limited to reduced availability rather than data access or modification.

The record

CVE
CVE-2025-27536
Published
Aug 11, 2025
Updated
Aug 11, 2025
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-843, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 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=v5.0.3 <=v5.0.3.x

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

OpenHarmony · OpenHarmonyversion=v5.0.3 <=v5.0.3.x

Published CVSS scores

3.3OpenHarmonyCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
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