CVE-2024-20802

Notification disclosure via missing cross-user access control

Published Jan 4, 2024 · Updated May 12, 2025

Improper access control in Samsung DeX before SMR Jan-2024 Release 1 allows attackers to read other users' notifications. In a multi-user environment, DeX applies inadequate access-control logic when the device owner views notifications, exposing data assigned to another user profile. The issue affects selected Android 13 devices and requires physical access as the owner; the disclosed consequence is cross-user notification disclosure only.

CVSS severity4.6
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Samsung DeX before SMR Jan-2024 Release 1 allows attackers to read other users' notifications. In a multi-user environment, DeX applies inadequate access-control logic when the device owner views notifications, exposing data assigned to another user profile. The issue affects selected Android 13 devices and requires physical access as the owner; the disclosed consequence is cross-user notification disclosure only.

The record

CVE
CVE-2024-20802
Published
Jan 4, 2024
Updated
May 12, 2025
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-284, T1005
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 4, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 2025Record 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.6Samsung MobileCVSS:3.1/AV:P/AC:L/PR:N/UI:N/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-284Improper Access Control
T1005Data 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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