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CVE-2026-21114 Samsung Mobile CVE debrief

CVE-2026-21114 is a high-severity vulnerability in Samsung Mobile Devices, allowing local attackers to execute arbitrary code via an out-of-bounds write in libsmkvextractor.so prior to SMR Oct-2026 Release 1. The CVE record was published on 2026-10-12T04:57:29.498Z and has not been modified since then. The NVD entry is currently not available. Defenders should assess exposure and apply patches, focusing on libsmkvextractor.so updates and SMR releases. This vulnerability affects Samsung Mobile Devices with specific versions of libsmkvextractor.so, and defenders should verify exposure and apply patches for SMR Oct-2026 Release 1 or later to prevent local code execution.

Vendor
Samsung Mobile
Product
Samsung Mobile Devices
CVSS
HIGH 7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-12
Original CVE updated
2026-10-12
Advisory published
2026-10-12
Advisory updated
2026-10-12

Who should care

Defenders responsible for Samsung Mobile Devices, particularly those managing libsmkvextractor.so updates and SMR releases, should assess exposure and apply patches.

Why it matters

CVE-2026-21114 is a high-severity vulnerability in Samsung Mobile Devices, allowing local attackers to execute arbitrary code via an out-of-bounds write in libsmkvextractor.so prior to SMR Oct-2026 Release 1. Defenders should prioritize verifying exposure and applying patches.

  • Verify exposure of Samsung Mobile Devices to libsmkvextractor.so vulnerability
  • Apply patches for SMR Oct-2026 Release 1 or later to prevent local code execution
  • Monitor for local attack attempts on Samsung Mobile Devices

Technical summary

Out-of-bounds write in libsmkvextractor.so prior to SMR Oct-2026 Release 1 allows local attackers to execute arbitrary code on Samsung Mobile Devices. This vulnerability is a high-severity issue, and defenders should prioritize verifying exposure and applying patches for Samsung Mobile Devices, focusing on libsmkvextractor.so updates and SMR releases. The vulnerability is limited to specific versions of libsmkvextractor.so, and defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Samsung Mobile Devices, focusing on libsmkvextractor.so updates.

Recommended defensive actions

  • Verify Samsung Mobile Devices for libsmkvextractor.so updates
  • Apply patches for SMR Oct-2026 Release 1 or later
  • Monitor for local attack attempts

Evidence notes

The CVE record and source item provide limited information on affected versions and exploitation. Further verification is required from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21114 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21114

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

  • CVE-2026-21114 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21114

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

Supplemental references

  • CVE-2026-21114

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/21xxx/CVE-2026-21114.json

    cve_program_cvelist_v5

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.