CVE-2021-25410Public exploit

Arbitrary file read via decoded path traversal

Published Jun 11, 2021 · Updated Aug 3, 2024

Path traversal in CallBGProvider on Samsung Mobile Devices R(11.0) allows local users to read arbitrary files with UID 1001 privileges. The provider leaves its custom permission at Android's normal protection level and uses a decoded final URI path segment for file access without rejecting traversal sequences. An attacker-controlled app installed on the device can therefore read files available to the telephony UID, including the SMS/MMS database, without remote reachability or user interaction.

CVSS severity7.1
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in CallBGProvider on Samsung Mobile Devices R(11.0) allows local users to read arbitrary files with UID 1001 privileges. The provider leaves its custom permission at Android's normal protection level and uses a decoded final URI path segment for file access without rejecting traversal sequences. An attacker-controlled app installed on the device can therefore read files available to the telephony UID, including the SMS/MMS database, without remote reachability or user interaction.

The record

CVE
CVE-2021-25410
Published
Jun 11, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-863, CWE-20, T1068
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 11, 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=R(11.0) <SMR JUN-2021 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=R(11.0) <SMR JUN-2021 Release 1

Published CVSS scores

3.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:N
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

Public exploit references

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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