CVE-2023-42570

Local SIM PIN disclosure via missing access control

Published Dec 5, 2023 · Updated Aug 2, 2024

Improper access control in Samsung Mobile Devices before SMR Dec-2023 Release 1 allows local users to read the device SIM PIN. KnoxCustomManagerService permits access to the SIM PIN without enforcing proper access control on the caller; Samsung has not disclosed the affected method or request path. No authentication or user interaction is required, and the demonstrated consequence is disclosure of the device SIM PIN.

CVSS severity5.9
Medium
EPSS probability0.20%
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 Mobile Devices before SMR Dec-2023 Release 1 allows local users to read the device SIM PIN. KnoxCustomManagerService permits access to the SIM PIN without enforcing proper access control on the caller; Samsung has not disclosed the affected method or request path. No authentication or user interaction is required, and the demonstrated consequence is disclosure of the device SIM PIN.

The record

CVE
CVE-2023-42570
Published
Dec 5, 2023
Updated
Aug 2, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-280
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

5.9Samsung MobileCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
3.3NIST NVDCVSS: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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-280Improper Handling of Insufficient Permissions or Privileges

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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