CVE-2021-25450

System-UID file write via faulty path validation

Published Sep 9, 2021 · Updated Aug 3, 2024

Path traversal in Samsung Mobile Devices before SMR Sep-2021 Release 1 allows attackers to write files via a remote socket. FactoryAirCommandManager's file-path validation logic incorrectly accepts traversal paths instead of confining the requested output location. Exploitation requires adjacent-network access, low privileges, user interaction, and high-complexity conditions; a successful write runs with the system UID.

CVSS severity4.5
Medium
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 Samsung Mobile Devices before SMR Sep-2021 Release 1 allows attackers to write files via a remote socket. FactoryAirCommandManager's file-path validation logic incorrectly accepts traversal paths instead of confining the requested output location. Exploitation requires adjacent-network access, low privileges, user interaction, and high-complexity conditions; a successful write runs with the system UID.

The record

CVE
CVE-2021-25450
Published
Sep 9, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-22, CWE-20
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 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=O(8.1), P(9.0), Q(10.0), R(11.0) <SMR Sep-2021 Release 1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=O(8.1), P(9.0), Q(10.0), R(11.0) <SMR Sep-2021 Release 1

Published CVSS scores

6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.3NIST National Vulnerability DatabaseAV:A/AC:L/Au:N/C:N/I:P/A:N
4.5Samsung MobileCVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:N/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-20Improper Input Validation

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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