CVE-2017-18648Public exploit

Locked-device file access via unrestricted MTP commands

Published Apr 7, 2020 · Updated Aug 5, 2024

Improper input validation in Samsung mobile devices running Android 4.4.x through 7.x allows physically proximate attackers to read or write files. The MTP service hides its storage list while the device is locked or set to charge-only, but still accepts generic file-listing commands that disclose storage IDs for later file operations. Physical USB access is required; no screen unlock or prior storage enumeration is needed to access internal or external storage.

CVSS severity9.1
Critical
EPSS probability0.40%
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 mobile devices running Android 4.4.x through 7.x allows physically proximate attackers to read or write files. The MTP service hides its storage list while the device is locked or set to charge-only, but still accepts generic file-listing commands that disclose storage IDs for later file operations. Physical USB access is required; no screen unlock or prior storage enumeration is needed to access internal or external storage.

The record

CVE
CVE-2017-18648
Published
Apr 7, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1409
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1409Stored Application Data

Public exploit references

  • MTPwnproof of concept · demonstrated

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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