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PatchSiren cyber security CVE debrief

CVE-2026-21034 Samsung Mobile CVE debrief

CVE-2026-21034 is a medium-severity vulnerability affecting Samsung Auto. The issue arises from the improper export of Android application components, allowing a local attacker to change audio configurations. This vulnerability impacts Samsung Auto versions prior to 3.1.2.61 on Android 15 and 3.2.0.38 on Android 16.

Vendor
Samsung Mobile
Product
Samsung Auto
CVSS
MEDIUM 4.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-30
Advisory published
2026-06-05
Advisory updated
2026-06-30

Who should care

Users of Samsung Auto on Android 15 and 16 should be aware of this vulnerability. Specifically, those with versions prior to 3.1.2.61 on Android 15 and 3.2.0.38 on Android 16 are at risk.

Technical summary

The vulnerability has a CVSS score of 4.8 and is classified as medium severity. It allows a local attacker to change audio configurations due to improper export of Android application components in Samsung Auto.

Defensive priority

Medium

Recommended defensive actions

  • Update Samsung Auto to version 3.1.2.61 or later on Android 15 devices.
  • Update Samsung Auto to version 3.2.0.38 or later on Android 16 devices.

Evidence notes

The CVE was published on June 5, 2026, and last modified on the same day. The vendor is listed as 'Unknown Vendor', but evidence suggests the product is from Samsung.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21034 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21034

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

  • CVE-2026-21034 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21034

    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.