CVE-2025-27536 arkcompiler_ets_runtime has a type confusion vulnerability

Low 3.3 Published Updated

A local attacker can cause a denial of service in OpenHarmony via a type confusion vulnerability in the ETS runtime.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-27536?

CVE-2025-27536 is a low-severity memory corruption vulnerability in Openatom Openharmony, published on 11 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

in OpenHarmony v5.0.3 and prior versions allow a local attacker cause DOS through type confusion.

Weakness: CWE-843

Which versions are affected by CVE-2025-27536?

It affects 1 product.

Products include Openatom Openharmony.

How do I fix CVE-2025-27536?

No fix has been published for CVE-2025-27536 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-27536 being exploited?

There is no known exploitation of CVE-2025-27536 in the wild and no public exploit code.

All Openatom Openharmony vulnerabilities

Sources

Also known as GHSA-r4pq-968w-g9qp.

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