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CVE-2026-21132 Samsung Mobile CVE debrief

CVE-2026-21132 is a medium-severity vulnerability in Samsung Internet prior to version 30.0.5.24 that allows remote attackers to inject arbitrary script, requiring user interaction. This vulnerability affects Samsung Internet deployments, and defenders should assess exposure and prioritize verification of versions prior to 30.0.5.24. The vulnerability has a CVSS score of 6 and a severity of MEDIUM. User interaction is required for triggering this vulnerability. The CVE record was published on 2026-10-12T04:57:50.307Z and has not been modified since then.

Vendor
Samsung Mobile
Product
Samsung Internet
CVSS
MEDIUM 6
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 Internet deployments should assess exposure and prioritize verification of versions prior to 30.0.5.24. They should also ensure user education on safe browsing practices to prevent script injection and monitor for potential script injection attempts. Additionally, defenders should review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-21132 is a medium-severity vulnerability in Samsung Internet that allows remote attackers to inject arbitrary script, requiring user interaction. Defenders should prioritize verifying exposure of Samsung Internet versions prior to 30.0.5.24 and ensuring user education on safe browsing practices.

  • Verify exposure of Samsung Internet versions prior to 30.0.5.24
  • Educate users on safe browsing practices to prevent script injection
  • Monitor for potential script injection attempts

Technical summary

CVE-2026-21132 is a medium-severity vulnerability in Samsung Internet prior to version 30.0.5.24 that allows remote attackers to inject arbitrary script, requiring user interaction. The vulnerability has a CVSS score of 6 and a severity of MEDIUM. This vulnerability is related to improper input validation in Samsung Internet. Defenders should prioritize verifying exposure of Samsung Internet versions prior to 30.0.5.24 and ensuring user education on safe browsing practices.

Defensive priority

Defenders should prioritize verifying exposure of Samsung Internet versions prior to 30.0.5.24 and ensuring user education on safe browsing practices.

Recommended defensive actions

  • Verify Samsung Internet version is 30.0.5.24 or later
  • Educate users on safe browsing practices
  • Monitor for potential script injection attempts

Evidence notes

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

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21132 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21132

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

  • CVE-2026-21132 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21132

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

Supplemental references

  • CVE-2026-21132

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/21xxx/CVE-2026-21132.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.