CVE-2021-25414Public exploit

Arbitrary file copy or overwrite via untrusted URIs

Published Jun 11, 2021 · Updated Aug 3, 2024

Improper input validation in Samsung Contacts before SMR JUN-2021 Release 1 allows local users to copy or overwrite arbitrary files. The exported SetProfilePhotoActivity trusts attacker-controlled shared_photo_uri and temp_photo_uri values, then transfers content through providers with Samsung Contacts privileges. Exploitation requires an attacker-controlled app on an affected Android 9, 10, or 11 device and enables file theft or replacement within the app privilege boundary.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Samsung Contacts before SMR JUN-2021 Release 1 allows local users to copy or overwrite arbitrary files. The exported SetProfilePhotoActivity trusts attacker-controlled shared_photo_uri and temp_photo_uri values, then transfers content through providers with Samsung Contacts privileges. Exploitation requires an attacker-controlled app on an affected Android 9, 10, or 11 device and enables file theft or replacement within the app privilege boundary.

The record

CVE
CVE-2021-25414
Published
Jun 11, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-20, T1404
Attack vector
local
Privileges
unauthenticated

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=P(9.0), Q(10.0), R(11.0) <SMA JUN-2021 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=P(9.0), Q(10.0), R(11.0) <SMA JUN-2021 Release 1

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1404Exploitation 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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