CVE-2026-21060 Samsung Mobile CVE debrief

Who should care

Organizations using Samsung devices with vulnerable Contacts versions should prioritize patching and review their exposure to this vulnerability. Security teams and vulnerability management teams should verify the affected scope, severity, and vendor guidance. Operators and platform administrators should review compensating controls for exposed systems and check relevant monitoring, detection, and logs for exposed assets.

Technical summary

Improper input validation in Samsung Contacts prior to SMR Aug-2026 Release 1 allows physical attackers to access data across multiple user profiles. This vulnerability has a CVSS score of 6.7 and is classified as MEDIUM severity. The vulnerability exists in the Samsung Contacts application, which does not properly validate user input, allowing physical attackers to access sensitive data.

Defensive priority

Medium priority due to physical attack vector

Recommended defensive actions

• Verify Samsung Contacts version is prior to SMR Aug-2026 Release 1
• Restrict physical access to devices with Samsung Contacts
• Monitor for suspicious activity on device profiles
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The evidence for this CVE is limited, primarily sourced from the official CVE record and NVD detail. Verification with Samsung mobile and official CVE records is recommended. Defenders should verify the affected scope, severity, and vendor guidance. The CVE record was published on 2026-08-10T08:16:48.090Z and has not been modified since then. Additional verification steps include reviewing compensating controls for exposed systems and checking relevant monitoring, detection, and logs for exposed assets.

Official resources