CVE-2021-25445

Local file disclosure via unprotected app component

Published Aug 5, 2021 · Updated Aug 3, 2024

Improper authentication in Samsung Internet before 14.2 allows local users to read the browser's internal files through an untrusted app. Samsung identifies an unprotected application component but does not disclose its name or the missing protection that permits file access. Exploitation requires installation and execution of an untrusted Android application on the same device; the documented impact is read access only.

CVSS severity5.3
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Samsung Internet before 14.2 allows local users to read the browser's internal files through an untrusted app. Samsung identifies an unprotected application component but does not disclose its name or the missing protection that permits file access. Exploitation requires installation and execution of an untrusted Android application on the same device; the documented impact is read access only.

The record

CVE
CVE-2021-25445
Published
Aug 5, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics
Product
Samsung Internet
Classifications
CWE-287, T1533
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 5, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=- <14.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Samsung Electronics · Samsung Internetversion=- <14.2

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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.

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1533Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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