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PatchSiren cyber security CVE debrief

CVE-2026-21027 Samsung Mobile CVE debrief

CVE-2026-21027 is a MEDIUM severity vulnerability with a CVSS score of 4.8. It involves improper export of android application components in ImsSettings prior to SMR Jun-2026 Release 1, allowing local attackers to trigger logging functions.

Vendor
Samsung Mobile
Product
Samsung Mobile Devices
CVSS
MEDIUM 4.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-06
Advisory published
2026-06-05
Advisory updated
2026-06-06

Who should care

Users of Samsung Android devices, particularly those with versions prior to SMR Jun-2026 Release 1, should apply the necessary patches to mitigate this vulnerability.

Technical summary

The vulnerability is caused by improper export of android application components in ImsSettings. This allows local attackers to trigger logging functions, potentially leading to information disclosure or other security issues.

Defensive priority

MEDIUM

Recommended defensive actions

  • Apply the security patch released by Samsung for SMR Jun-2026 Release 1 or later.
  • Ensure that your Samsung Android device is updated to the latest security patch level.
  • Use secure coding practices and review application component exports for similar vulnerabilities.

Evidence notes

The CVE-2026-21027 record and details were obtained from official sources, including CVE.org and NVD.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21027 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21027

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-21027 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21027

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

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.