CVE-2023-21466

Unauthorized ContentProvider access via PendingIntent hijacking

Published Sep 3, 2025 · Updated Sep 3, 2025

PendingIntent hijacking in CertificatePolicy on Samsung Mobile Devices before SMR Apr-2023 Release 1 allows local users to access a ContentProvider. CertificatePolicy exposes a PendingIntent that another local app can hijack, but Samsung does not disclose which intent property makes it interceptable. Low-privilege local access is required, and successful exploitation crosses the ContentProvider permission boundary on affected Android 11, 12, and 13 devices.

CVSS severity5.3
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

PendingIntent hijacking in CertificatePolicy on Samsung Mobile Devices before SMR Apr-2023 Release 1 allows local users to access a ContentProvider. CertificatePolicy exposes a PendingIntent that another local app can hijack, but Samsung does not disclose which intent property makes it interceptable. Low-privilege local access is required, and successful exploitation crosses the ContentProvider permission boundary on affected Android 11, 12, and 13 devices.

The record

CVE
CVE-2023-21466
Published
Sep 3, 2025
Updated
Sep 3, 2025
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-287, T1068
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3Samsung MobileCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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-287Improper Authentication
T1068Exploitation for Privilege Escalation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo