CVE-2026-21027

Local logging activation via missing component permission

Published Jun 5, 2026 · Updated Jun 5, 2026

Improper component export in ImsSettings on Samsung Mobile Devices before SMR Jun-2026 Release 1 allows local users to trigger logging. An ImsSettings Android component is exposed without the permission needed to restrict caller access, allowing another local application to invoke its logging entry point. A low-privilege local application can reach it without user interaction; Samsung assesses a limited confidentiality effect, while NVD assesses a limited integrity effect.

CVSS severity4.8
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper component export in ImsSettings on Samsung Mobile Devices before SMR Jun-2026 Release 1 allows local users to trigger logging. An ImsSettings Android component is exposed without the permission needed to restrict caller access, allowing another local application to invoke its logging entry point. A low-privilege local application can reach it without user interaction; Samsung assesses a limited confidentiality effect, while NVD assesses a limited integrity effect.

The record

CVE
CVE-2026-21027
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-926
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record 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 privilegesUnavailable in this record.

What is affected?

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

Published CVSS scores

4.8Samsung MobileCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.3NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-926Improper Export of Android Application Components

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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