CVE-2026-21052 Samsung Mobile CVE debrief

Who should care

Users of Samsung devices should be aware of this vulnerability and ensure their devices are updated to the latest security patch. The vulnerability allows local privileged attackers to access files with system privilege, which could lead to a compromise of the device.

Technical summary

The vulnerability is caused by a path traversal issue in SemClipboardService. This issue allows local privileged attackers to access files with system privilege. The vulnerability has a CVSS score of 6.8 and a severity of MEDIUM. The affected product is SemClipboardService prior to SMR Jul-2026 Release 1.

Defensive priority

Medium priority due to the potential for local privilege escalation.

Recommended defensive actions

• Apply the latest security patch from Samsung
• Ensure devices are updated to SMR Jul-2026 Release 1 or later
• Monitor device logs for suspicious activity
• Implement additional security controls to restrict access to sensitive files
• Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record was published on 2026-07-10T05:16:35.877Z and was last modified on 2026-07-10T12:16:32.907Z. The NVD entry is currently Received. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The vulnerability has a CVSS score of 6.8 and a severity of MEDIUM. The SemClipboardService is affected by a path traversal issue, which allows local privileged attackers to access files with system privilege.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.