CVE-2026-21123: CWE-269: Improper Privilege Management in Samsung Mobile Samsung Mobile Devices
Description
CVE-2026-21123 is a medium severity vulnerability in Samsung Mobile Devices involving improper privilege management in the Locksettings component prior to the SMR Oct-2026 Release 1. It allows local attackers with root privileges to access data of the tied profile before the device's first unlock. The vulnerability requires high privileges and local access, with no user interaction needed.
CVSS v4.0
Score 6.7medium
Affected software
Samsung Mobile
Samsung Mobile Devices
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-21123) affects Samsung Mobile Devices' Locksettings component before the SMR Oct-2026 Release 1. It involves improper privilege management (CWE-269) that permits local attackers who already have root privileges to access data belonging to the tied profile before the device is first unlocked. The CVSS 4.0 score is 6.7 (medium severity), reflecting local attack vector, low attack complexity, no user interaction, and high impact on confidentiality. There is no indication of known exploits in the wild or cloud service involvement.
Potential Impact
An attacker with root privileges on the device can access sensitive data of the tied profile before the device is first unlocked. This could lead to unauthorized data disclosure. However, the attack requires already having root privileges, limiting the scope of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions prior to SMR Oct-2026 Release 1, applying this release or later when available is recommended. No official patch or workaround information is provided in the current data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- SamsungMobile
- Date Reserved
- 2025-12-11T01:33:35.832Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acc6a3e2cdf04f65661372c
Added to database: 10/12/2026, 05:03:58 UTC
Last enriched: 10/12/2026, 05:19:13 UTC
Last updated: 10/12/2026, 18:57:56 UTC
Views: 17
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