CVE-2026-21002

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Improper Signature Verification in Galaxy Store Enables Arbitrary App Installation

Publication date: 2026-03-16

Last updated on: 2026-04-07

Assigner: Samsung Mobile

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-03-16

Last Modified

2026-04-07

Generated

2026-07-06

AI Q&A

2026-03-16

EPSS Evaluated

2026-07-05

NVD

CVE-2026-21002

EUVD

EUVD-2026-12321

Affected Vendors & Products

Vendor	Product	Version / Range
samsung	galaxy_store	to 4.6.03.8 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-347	The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper verification of cryptographic signatures in the Galaxy Store application prior to version 4.6.03.8.

Because of this flaw, a local attacker can exploit the weakness to install arbitrary applications on the device.

Impact Analysis

The vulnerability allows a local attacker to install arbitrary applications without proper authorization.

This can lead to unauthorized software running on your device, which may compromise device security, privacy, and data integrity.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, ensure that the Galaxy Store application is updated to version 4.6.03.8 or later, as versions prior to this contain the improper verification of cryptographic signatures that allows local attackers to install arbitrary applications.

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