CVE-2021-25335

Hidden notification disclosure via cocktailbar lockscreen check

Published Mar 4, 2021 · Updated Aug 3, 2024

Improper lockscreen status check in Samsung Mobile Devices Selected Q(10.0) allows unauthenticated users to access hidden notifications locally. The cocktailbar service incorrectly evaluates lockscreen state, allowing hidden notification contents to be returned under a specific condition. Physical access and lockscreen interaction are required; the disclosed data affects confidentiality without altering device integrity or availability.

CVSS severity2.5
Low
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper lockscreen status check in Samsung Mobile Devices Selected Q(10.0) allows unauthenticated users to access hidden notifications locally. The cocktailbar service incorrectly evaluates lockscreen state, allowing hidden notification contents to be returned under a specific condition. Physical access and lockscreen interaction are required; the disclosed data affects confidentiality without altering device integrity or availability.

The record

CVE
CVE-2021-25335
Published
Mar 4, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-703
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=Selected Q(10.0) <SMR Mar-2021 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=Selected Q(10.0) <SMR Mar-2021 Release 1

Published CVSS scores

2.5Samsung MobileCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
1.9NVDAV:L/AC:M/Au:N/C:P/I:N/A:N
2.5NVDCVSS:3.1/AV:L/AC:H/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-703Improper Check or Handling of Exceptional Conditions

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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