CVE-2026-21002 Security feature bypass in Galaxy Store

Medium 5.9 Published Updated

A local attacker can bypass signature verification in the Samsung Galaxy Store to install arbitrary applications, potentially leading to code execution.

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

What is CVE-2026-21002?

CVE-2026-21002 is a medium-severity vulnerability in Samsung Mobile Galaxy Store, published on 16 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper verification of cryptographic signature in Galaxy Store prior to version 4.6.03.8 allows local attacker to install arbitrary application.

Weakness: CWE-347

Which versions are affected by CVE-2026-21002?

It affects 1 product.

Products include Samsung Galaxy Store.

How do I fix CVE-2026-21002?

No fix has been published for CVE-2026-21002 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21002 being exploited?

There is no known exploitation of CVE-2026-21002 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-52q6-xhg6-rw2j.

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