CVE-2026-49885 Integer overflow in Android

High 7.8 Published Updated

An integer overflow in Android's NFC stack 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-2026-49885?

CVE-2026-49885 is a high-severity vulnerability in Google Android, published on 5 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In rw_t4t_update_file of rw_t4t.cc, there is a possible out-of-bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-190

Which versions are affected by CVE-2026-49885?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2026-49885?

Apply the vendor's patch.

Is CVE-2026-49885 being exploited?

There is no known exploitation of CVE-2026-49885 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-508389525, ASB-A-508389525, GHSA-4w9f-mhm7-hm3h.

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