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CVE-2026-21026 Samsung Mobile CVE debrief

CVE-2026-21026 is a MEDIUM-severity vulnerability (CVSS Score: 6.4) affecting Samsung's SpriteWallpaper application on Android devices. The issue arises from the improper export of Android application components, allowing local attackers to access sensitive information. The vulnerability was published on 2026-06-05T11:16:35.093Z and modified on 2026-06-06T02:00:55.580Z.

Vendor
Samsung Mobile
Product
Samsung Mobile Devices
CVSS
MEDIUM 6.4
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

Android users with devices running Samsung's SpriteWallpaper application prior to SMR Jun-2026 Release 1 should be aware of this vulnerability. Local attackers could exploit this issue to access sensitive information.

Technical summary

The vulnerability is caused by the improper export of Android application components in SpriteWallpaper. This allows local attackers to access sensitive information. The CVSS vector for this vulnerability is CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

MEDIUM

Recommended defensive actions

  • Users should update their Samsung devices to SMR Jun-2026 Release 1 or later to patch this vulnerability.
  • Use secure practices when granting permissions to applications, especially those with access to sensitive information.

Evidence notes

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

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21026 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21026

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

  • CVE-2026-21026 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21026

    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.