CVE-2026-21120: CWE-416 Use after free in Samsung Mobile Samsung Mobile Devices
Description
Use after free in WSM service prior to SMR Oct-2026 Release 1 allows local attackers to potentially execute arbitrary code with system privilege.
CVSS v4.0
Score 8.9high
Affected software
Samsung Mobile
Samsung Mobile Devices
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-21120) involves a use-after-free condition in the WSM service component of Samsung Mobile Devices. It affects versions prior to the SMR October 2026 Release 1. Exploitation requires local access and can lead to arbitrary code execution with system-level privileges. The CVSS 4.0 base score is 8.9, indicating a high severity issue with low attack complexity and no user interaction required. No known exploits in the wild have been reported. No patch or remediation details are provided in the source data.
Potential Impact
Successful exploitation could allow a local attacker to execute arbitrary code with system privileges on affected Samsung Mobile Devices. This could lead to full system compromise. The vulnerability is rated high severity with a CVSS 4.0 score of 8.9. There are no reports of known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Samsung Mobile's security advisories for updates and apply the SMR October 2026 Release 1 or later once available.
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: 6acc6a3c2cdf04f656613727
Added to database: 10/12/2026, 05:03:56 UTC
Last enriched: 10/12/2026, 05:18:30 UTC
Last updated: 10/12/2026, 18:57:55 UTC
Views: 18
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