CVE-2023-21249

Local sensor-data access via retained one-time permissions

Published Jul 12, 2023 · Updated Nov 6, 2024

Improper permission preservation in Google Android 13 allows local users to retain one-time access to protected sensors without interaction. OneTimePermissionUserManager watches process importance, so a system binding with BIND_FOREGROUND_SERVICE can keep an app above the revocation threshold after use. User-level code must first receive a one-time permission; retention can prolong access to microphone, camera, or location data.

CVSS severity5.5
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission preservation in Google Android 13 allows local users to retain one-time access to protected sensors without interaction. OneTimePermissionUserManager watches process importance, so a system binding with BIND_FOREGROUND_SERVICE can keep an app above the revocation threshold after use. User-level code must first receive a one-time permission; retention can prolong access to microphone, camera, or location data.

The record

CVE
CVE-2023-21249
Published
Jul 12, 2023
Updated
Nov 6, 2024
Vendor
Google
Product
Android
Classifications
CWE-281, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 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=13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=13

Published CVSS scores

5.5NIST NVDCVSS: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.

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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-281Improper Preservation of Permissions
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

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Your stack

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