CVE-2023-21512

Work-profile notification disclosure via improper Knox ID validation

Published Jun 28, 2023 · Updated Nov 7, 2024

Improper privilege management in Samsung Mobile Devices before SMR Jun-2023 Release 1 allows local users to read work-profile notifications. The notification framework fails to validate the Knox ID properly before allowing access to notifications belonging to a work profile. Exploitation requires physical access to an affected Android 11, 12, or 13 device and exposes notification contents without permission.

CVSS severity2.4
Low
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Samsung Mobile Devices before SMR Jun-2023 Release 1 allows local users to read work-profile notifications. The notification framework fails to validate the Knox ID properly before allowing access to notifications belonging to a work profile. Exploitation requires physical access to an affected Android 11, 12, or 13 device and exposes notification contents without permission.

The record

CVE
CVE-2023-21512
Published
Jun 28, 2023
Updated
Nov 7, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-269, CWE-276, T1517
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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=Android 11, 12, 13 <SMR Jun-2023 Release 1

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=Android 11, 12, 13 <SMR Jun-2023 Release 1

Published CVSS scores

2.4Samsung MobileCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.3NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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-269Improper Privilege Management
CWE-276Incorrect Default Permissions
T1517Access Notifications

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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