CVE-2026-0123 Memory corruption in Android

High 8.4 Published Updated

A missing bounds check in the Android EfwApTransport component allows local attackers to escalate privileges via an out-of-bounds write.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-0123?

CVE-2026-0123 is a high-severity memory corruption vulnerability in Google Android, published on 10 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In EfwApTransport::ProcessRxRing of efw_ap_transport.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-787

Which versions are affected by CVE-2026-0123?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2026-0123?

Apply the vendor's patch.

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

Is CVE-2026-0123 being exploited?

There is no known exploitation of CVE-2026-0123 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-430693465, GHSA-qxqh-mmcr-2p4p, PUB-A-430693465.

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