CVE-2026-28668 Use after free in Android

High 7.8 Published Updated

A use-after-free vulnerability in Android's malloc_limit.cpp allows local attackers to escalate privileges without user interaction.

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

What is CVE-2026-28668?

CVE-2026-28668 is a high-severity use after free vulnerability in Google Android, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In LimitRealloc of malloc_limit.cpp, there is a possible use after free due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-693

Which versions are affected by CVE-2026-28668?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2026-28668?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-28668 being exploited?

There is no known exploitation of CVE-2026-28668 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-501541998, ASB-A-501541998, GHSA-jghp-5mw8-mxx2.

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