---
id: CVE-2026-21135
title: >-
  Improper access control in Samsung Internet prior to version 30.0.5.6 allows
  local attackers to access sensitive information.
summary: >-
  Improper access control in Samsung Internet prior to version 30.0.5.6 allows
  local attackers to access sensitive information.
severity: medium
cvss: 5.9
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-284
vendor: Samsung Mobile
product: Samsung Internet
affected:
  - samsung_internet (all versions)
published: '2026-10-12'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T17:17:34.337'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21135'
references:
  - url: 'https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=10'
    label: mobile.security@samsung.com
tags:
  - nvd
  - cve.org
epss: 0.00105
epssPercentile: 0.01056
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T16:38:33.202072Z'
cvssSource: cna
ingestedAt: '2026-10-12T14:50:34.088Z'
---

## Overview

Improper access control in Samsung Internet prior to version 30.0.5.6 allows local attackers to access sensitive information.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.