CVE-2026-21036

Local sensitive-information disclosure

Published Jun 5, 2026 · Updated Jun 5, 2026

Improper authorization in Samsung Internet before 30.0.0.39 allows local users to access sensitive information through the browser. Samsung has not disclosed the affected component, protected resource, or authorization check that accepts the local request. Exploitation requires low local privileges and no user interaction; the reported direct impact is limited to information disclosure.

CVSS severity6.3
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Samsung Internet before 30.0.0.39 allows local users to access sensitive information through the browser. Samsung has not disclosed the affected component, protected resource, or authorization check that accepts the local request. Exploitation requires low local privileges and no user interaction; the reported direct impact is limited to information disclosure.

The record

CVE
CVE-2026-21036
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
Samsung Electronics
Product
Samsung Internet
Classifications
CWE-863
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Samsung Electronics · Samsung InternetAffected versions are unavailable in this record.

Published CVSS scores

6.3Samsung MobileCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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