CVE-2023-40105

Local information disclosure via unchecked caller UID

Published Feb 15, 2024 · Updated Oct 31, 2024

Information disclosure in Google Android 11, 12, 12L, 13, and 14 allows local users to access sensitive data via a backup-agent callback. ActivityManagerService.backupAgentCreated accepts a package name without verifying that the caller UID owns that package, allowing a caller to impersonate another package. A local app needs no additional execution privileges or user interaction; exposure is limited to data delivered through the mismatched backup-agent callback.

CVSS severity5.5
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

Information disclosure in Google Android 11, 12, 12L, 13, and 14 allows local users to access sensitive data via a backup-agent callback. ActivityManagerService.backupAgentCreated accepts a package name without verifying that the caller UID owns that package, allowing a caller to impersonate another package. A local app needs no additional execution privileges or user interaction; exposure is limited to data delivered through the mismatched backup-agent callback.

The record

CVE
CVE-2023-40105
Published
Feb 15, 2024
Updated
Oct 31, 2024
Vendor
Google
Product
Android
Classifications
CWE-862
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 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=11
  2. Affected versionversion=12
  3. Affected versionversion=12L
  4. Affected versionversion=13
  5. Affected versionversion=14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=11; version=12; version=12L; version=13; version=14

Published CVSS scores

5.5CISA-ADPCVSS: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-862Missing Authorization

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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