CVE-2026-21011

Physical authentication bypass via Bluetooth privilege assignment

Published Apr 13, 2026 · Updated Apr 13, 2026

Bluetooth privilege assignment in Samsung Mobile Devices before SMR Apr-2026 Release 1 allows physical attackers to bypass Extend Unlock. The Bluetooth component assigns an incorrect privilege while the device is in Maintenance mode; Samsung has not disclosed the affected function or request path. Exploitation requires physical proximity, Maintenance mode, Bluetooth interaction, and active user interaction, enabling unauthorized access through Extend Unlock.

CVSS severity5.4
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Bluetooth privilege assignment in Samsung Mobile Devices before SMR Apr-2026 Release 1 allows physical attackers to bypass Extend Unlock. The Bluetooth component assigns an incorrect privilege while the device is in Maintenance mode; Samsung has not disclosed the affected function or request path. Exploitation requires physical proximity, Maintenance mode, Bluetooth interaction, and active user interaction, enabling unauthorized access through Extend Unlock.

The record

CVE
CVE-2026-21011
Published
Apr 13, 2026
Updated
Apr 13, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-732
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 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 vectorphysical
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

5.4Samsung MobileCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
6.8NIST National Vulnerability DatabaseCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource

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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