CVE-2026-21098 | BDVDB-2026-370558 Detail

SamsungSamsung Mobile Devices

Description#

Improper access control in Link to Windows prior to SMR Sep-2026 Release 1 allows local attackers to establish a connection with the PC without proper user interaction.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.

Weaknesses#

CWE-284 Improper Access Control

References#

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09

Exploit#

No public exploit known

History#

Version 12026-09-09Record published in the CVE List.
Version 22026-09-10Most recent update recorded in the CVE List.

Published

Published: 2026-09-09
Last modified: 2026-09-10

Vendor information

Vendor: Samsung
Product: Samsung Mobile Devices

All Samsung vulnerabilities

Score

6.9 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 0.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Access Control

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
SMR Sep-2026 Release in Android 14, 15, 16, 17

Scoring System

CVSS v4.0

6.9 Medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	None
Vulnerable System Availability	High
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).