CVE-2026-21011

Bluetooth Privilege Assignment Bypass in Maintenance Mode

Published Apr 13, 2026 CVSS 4.0 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
Incorrect privilege assignment in Bluetooth in Maintenance mode prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Extend Unlock.

Analysis

AI-generated

Technical impact

The flaw involves incorrect privilege assignment in the Bluetooth stack when the device is in Maintenance mode prior to the April 2026 SMR Release 1 update. This weakness allows a physical attacker to gain privileges that bypass the Extend Unlock feature. The weakness is classified as CWE‑732, which deals with incorrect privilege assignment.

Affected Systems

The issue affects Samsung Mobile Devices running Android 14, 15, and 16 that have not yet received the April 2026 SMR Release 1 update. The vulnerability manifests in any SMR release before that date: versions ranging from smr‑jan 2022‑r1 to smr‑jan 2026‑r1 for Android 14, and analogous months for Android 15 and 16 up to the appropriate SMR releases.

Risk and Exploitability

The CVSS score of 5.4 indicates moderate impact, and the EPSS score of less than 1 % suggests low likelihood of exploitation. However, the attack requires physical proximity and the device to be in Maintenance mode, making it a local attack. The vulnerability is not listed in the KEV catalog. Until a patch is applied, physical attackers could bypass Extend Unlock and potentially gain further privileges.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Samsung security update for affected Android versions (14, 15, or 16) that addresses the Bluetooth privilege assignment flaw.
  • Disable Bluetooth when the device is in Maintenance mode to reduce exposure.
  • Physically secure the device to prevent attackers from accessing it during Maintenance mode.

Generated by OpenCVE AI on April 14, 2026 at 17:59 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Bluetooth Privilege Assignment Bypass in Maintenance Mode
Type Values Removed Values Added
Title Bluetooth Maintenance Mode Privilege Escalation Allowing Extend Unlock Bypass
Weaknesses CWE-284
Type Values Removed Values Added
First Time appeared Samsung android
Weaknesses CWE-732
CPEs cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-apr-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-aug-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-aug-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-aug-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-aug-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-dec-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-dec-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-dec-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-dec-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-dec-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-feb-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-feb-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-feb-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-feb-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-feb-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jan-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jan-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jan-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jan-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jan-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jul-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jul-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jul-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jul-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jun-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jun-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jun-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-jun-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-mar-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-mar-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-mar-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-mar-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-mar-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-may-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-may-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-may-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-may-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-nov-2021-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-nov-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-nov-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-nov-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-nov-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-oct-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-oct-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-oct-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-oct-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-sep-2022-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-sep-2023-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-sep-2024-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:14.0:smr-sep-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:-:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-apr-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-aug-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-dec-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-feb-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-feb-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-jan-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-jan-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-jul-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-jun-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-mar-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-mar-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-may-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-nov-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-oct-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:15.0:smr-sep-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:-:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-aug-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-dec-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-feb-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-jan-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-mar-2026-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-nov-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-oct-2025-r1:*:*:*:*:*:*
cpe:2.3:o:samsung:android:16.0:smr-sep-2025-r1:*:*:*:*:*:*
Vendors & Products Samsung android
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Bluetooth Maintenance Mode Privilege Escalation Allowing Extend Unlock Bypass
Weaknesses CWE-284
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Samsung
Samsung mobile Devices
Samsung Mobile
Samsung Mobile samsung Mobile Devices
Vendors & Products Samsung
Samsung mobile Devices
Samsung Mobile
Samsung Mobile samsung Mobile Devices
Type Values Removed Values Added
Description Incorrect privilege assignment in Bluetooth in Maintenance mode prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Extend Unlock.
References
Metrics cvssV4_0

{'score': 5.4, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses
  • CWE-732

    Incorrect Permission Assignment for Critical Resource

Sources

Status
PUBLISHED
Assigner
SamsungMobile
Published
Updated
Apr 13, 2026, 1:09 PM
Reserved
Dec 11, 2025, 1:33 AM
Status
Analyzed
Published
Apr 13, 2026, 6:16 AM
Modified
Oct 26, 2026, 9:10 PM