CVE-2026-21118: CWE-284: Improper Access Control in Samsung Mobile Samsung Mobile Devices
Description
CVE-2026-21118 is an improper access control vulnerability in the DownloadProvider component of Samsung Mobile Devices prior to the SMR Oct-2026 Release 1. This flaw allows local attackers with limited privileges to access files within scoped storage that should be restricted. The vulnerability has a medium severity with a CVSS 4.0 base score of 6.9.
CVSS v4.0
Score 6.9medium
Affected software
Samsung Mobile
Samsung Mobile Devices
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper access control in the DownloadProvider on Samsung Mobile Devices before the SMR Oct-2026 Release 1 update. Local attackers with limited privileges can exploit this issue to access files in scoped storage, which normally enforces access restrictions. The CVSS 4.0 vector indicates local attack vector, low attack complexity, no user interaction, and partial impacts on confidentiality, integrity, and availability.
Potential Impact
Local attackers with limited privileges can gain unauthorized access to files in scoped storage, potentially exposing sensitive data or enabling further local attacks. The impact is limited to confidentiality, integrity, and availability at a low to high level, but does not extend to remote exploitation or require user interaction.
Mitigation Recommendations
A fix is available in the SMR Oct-2026 Release 1 update from Samsung Mobile. Users and administrators should apply this official patch to remediate the vulnerability. No additional mitigation guidance is provided or required beyond applying the update.
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: 6acc6a3c2cdf04f656613725
Added to database: 10/12/2026, 05:03:56 UTC
Last enriched: 10/12/2026, 05:19:24 UTC
Last updated: 10/12/2026, 18:57:56 UTC
Views: 18
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