CVE-2021-25352

Privileged action execution via implicit PendingIntent hijacking

Published Mar 25, 2021 · Updated Aug 3, 2024

Improper authorization in Samsung Electronics Bixby Voice before 3.0.52.14 allows local users to execute a privileged action. The app creates a PendingIntent around an implicit intent, allowing another local application to intercept and modify the intent before execution. A local low-privileged application is required; the published record identifies confidentiality impact but does not disclose the exact action or data exposed.

CVSS severity5.5
Medium
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 authorization in Samsung Electronics Bixby Voice before 3.0.52.14 allows local users to execute a privileged action. The app creates a PendingIntent around an implicit intent, allowing another local application to intercept and modify the intent before execution. A local low-privileged application is required; the published record identifies confidentiality impact but does not disclose the exact action or data exposed.

The record

CVE
CVE-2021-25352
Published
Mar 25, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics
Product
Bixby Voice
Classifications
CWE-285, CWE-668, T1626
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <3.0.52.14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Samsung Electronics · Bixby Voiceversion=unspecified <3.0.52.14

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5Samsung MobileCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-668Exposure of Resource to Wrong Sphere
T1626Abuse Elevation Control Mechanism

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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