CVE-2021-25406

Local information disclosure via Bluetooth device data

Published Jun 11, 2021 · Updated Aug 3, 2024

Information exposure in Gear S Plugin before 2.2.05.20122441 allows local users to read connected Bluetooth device information. The plugin exposes connected Bluetooth device serial data to untrusted applications without authorization checks. A malicious application must be installed on the Android device; the consequence is local confidentiality loss without reported integrity or availability impact.

CVSS severity6.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Gear S Plugin before 2.2.05.20122441 allows local users to read connected Bluetooth device information. The plugin exposes connected Bluetooth device serial data to untrusted applications without authorization checks. A malicious application must be installed on the Android device; the consequence is local confidentiality loss without reported integrity or availability impact.

The record

CVE
CVE-2021-25406
Published
Jun 11, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Gear S Plugin
Classifications
CWE-863, CWE-922, T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <2.2.05.21033151

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Gear S Pluginversion=unspecified <2.2.05.21033151

Published CVSS scores

3.3NVDAV:A/AC:L/Au:N/C:P/I:N/A:N
6.5NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863CWE-863: Incorrect Authorization
CWE-922CWE-922: Insecure Storage of Sensitive Information
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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