CVE-2023-42556

Local information disclosure via implicit intent hijacking

Published Dec 5, 2023 · Updated Aug 2, 2024

Information disclosure in Contacts on Samsung Mobile Devices before SMR Dec-2023 Release 1 allows local users to read sensitive data. Contacts sends sensitive communication through an implicit Android intent, allowing another local app registered for that intent to receive the data. Exploitation requires local execution and user interaction but no privileges; the reported consequence is limited to sensitive-information disclosure.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Contacts on Samsung Mobile Devices before SMR Dec-2023 Release 1 allows local users to read sensitive data. Contacts sends sensitive communication through an implicit Android intent, allowing another local app registered for that intent to receive the data. Exploitation requires local execution and user interaction but no privileges; the reported consequence is limited to sensitive-information disclosure.

The record

CVE
CVE-2023-42556
Published
Dec 5, 2023
Updated
Aug 2, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-927
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

5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
3.3Samsung MobileCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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-927Use of Implicit Intent for Sensitive Communication

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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