CVE-2026-21108 Samsung Mobile CVE debrief

Who should care

Defenders responsible for systems using Bixby Touch, particularly those in Android environments, should assess exposure and verify the version of Bixby Touch to determine if it is vulnerable.

Why it matters

CVE-2026-21108 is a medium-severity vulnerability affecting Samsung's Bixby Touch, allowing local attackers to access sensitive information. Defenders should prioritize verifying exposure, assessing impact, and updating to version 4.3.01.17 or later.

• Local attackers may access sensitive information on affected systems
• Defenders need to verify Bixby Touch version and update to 4.3.01.17 or later
• Exposure assessment is necessary for systems using Bixby Touch prior to 4.3.01.17

Technical summary

The vulnerability is caused by improper export of Android application components in Bixby Touch prior to version 4.3.01.17, allowing local attackers to access sensitive information. This issue affects systems using Bixby Touch versions prior to 4.3.01.17. Defenders should assess exposure, verify the version of Bixby Touch, and update to 4.3.01.17 or later. The CVSS score is 6.9, and the severity is MEDIUM. To address this vulnerability, defenders should prioritize verifying exposure and assessing the impact on their systems. The CVE record and NVD detail page are

Defensive priority

Defenders should prioritize verifying exposure and assessing the impact of this vulnerability on their systems, particularly those using Bixby Touch versions prior to 4.3.01.17.

Recommended defensive actions

• Verify Bixby Touch version and update to 4.3.01.17 or later if necessary
• Assess exposure and potential impact on systems using Bixby Touch
• Monitor for local attackers attempting to access sensitive information

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. However, the corpus does not establish versions, exploitation, impact, or remediation beyond vendor advisory.

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.