CVE-2026-21109

Local sensitive-information disclosure

Published Sep 9, 2026 · Updated Sep 10, 2026

Improper access control in Samsung Galaxy Watch Plugin before Android Watch 17 allows local users to read sensitive information. Samsung has not disclosed the affected handler, protected resource, or incorrect access-control operation. Exploitation requires local execution and unspecified additional conditions; the published assessment limits impact to data disclosure.

CVSS severity2.1
Low
EPSS probability0.10%
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 Galaxy Watch Plugin before Android Watch 17 allows local users to read sensitive information. Samsung has not disclosed the affected handler, protected resource, or incorrect access-control operation. Exploitation requires local execution and unspecified additional conditions; the published assessment limits impact to data disclosure.

The record

CVE
CVE-2026-21109
Published
Sep 9, 2026
Updated
Sep 10, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Galaxy Watch Plugin
Classifications
CWE-284
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 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 privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Galaxy Watch PluginAffected versions are unavailable in this record.

Published CVSS scores

2.1Samsung MobileCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/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.

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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-284Improper Access Control

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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