CVE-2026-21084

Sensitive-data access via undisclosed authorization failure

Published Aug 10, 2026 · Updated Aug 10, 2026

Improper access control in Samsung SmartThings before 1.8.47.24 allows local users to access sensitive information without user interaction. Samsung has not disclosed the affected component or the access-control operation that incorrectly authorizes requests for the data. Exploitation requires low-privileged local access to the Android device, and the nature of the exposed information remains undisclosed.

CVSS severity6.9
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Samsung SmartThings before 1.8.47.24 allows local users to access sensitive information without user interaction. Samsung has not disclosed the affected component or the access-control operation that incorrectly authorizes requests for the data. Exploitation requires low-privileged local access to the Android device, and the nature of the exposed information remains undisclosed.

The record

CVE
CVE-2026-21084
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
SmartThings
Classifications
CWE-284, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Samsung Electronics Co., Ltd. · SmartThingsAffected versions are unavailable in this record.

Published CVSS scores

6.9Samsung MobileCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
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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