CVE-2024-20856

Physical data access via missing authentication check

Published May 7, 2024 · Updated Aug 1, 2024

Improper authentication in Samsung Secure Folder on Android 14 allows physically proximate attackers to access it without authentication. Samsung has not disclosed which authentication decision omits the required check or what scenario triggers the bypass. Physical possession and user interaction are required, and the documented impact is limited to unauthorized access without reported modification or service interruption.

CVSS severity4.3
Medium
EPSS probability0.29%
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 Secure Folder on Android 14 allows physically proximate attackers to access it without authentication. Samsung has not disclosed which authentication decision omits the required check or what scenario triggers the bypass. Physical possession and user interaction are required, and the documented impact is limited to unauthorized access without reported modification or service interruption.

The record

CVE
CVE-2024-20856
Published
May 7, 2024
Updated
Aug 1, 2024
Vendor
Samsung Electronics
Product
Android
Classifications
CWE-287, T1533
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Samsung Electronics · Androidversion=14
Samsung Electronics Co., Ltd. · Samsung Mobile DevicesAffected versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
4.3Samsung MobileCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/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.

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)
Vectorphysical
Privilegesunauthenticated
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.

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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