CVE-2026-56942 Memory corruption in Android

High 8.8 Published Updated

A missing bounds check in the VP9 hardware decoder allows remote attackers to achieve privilege escalation via an out-of-bounds write without user interaction.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-56942?

CVE-2026-56942 is a high-severity memory corruption vulnerability in Google Android, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In ReadTileInfo of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote 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-2026-56942?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2026-56942?

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-2026-56942 being exploited?

There is no known exploitation of CVE-2026-56942 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-508686360, GHSA-vrr3-cf34-j7gj, PUB-A-508686360.

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