CVE-2023-21299

Local app enumeration via Package Manager side channel

Published Oct 30, 2023 · Updated Oct 11, 2024

Information disclosure in Google Android 14 Package Manager allows local users to identify installed apps through a side channel. Package Manager exposes an observable difference when an app probes another package, bypassing the query-permission restriction on installation-state checks. A locally installed app with ordinary execution privileges can enumerate package presence without user interaction, but cannot alter apps or system state through this flaw.

CVSS severity5.5
Medium
EPSS probability0.09%
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

Information disclosure in Google Android 14 Package Manager allows local users to identify installed apps through a side channel. Package Manager exposes an observable difference when an app probes another package, bypassing the query-permission restriction on installation-state checks. A locally installed app with ordinary execution privileges can enumerate package presence without user interaction, but cannot alter apps or system state through this flaw.

The record

CVE
CVE-2023-21299
Published
Oct 30, 2023
Updated
Oct 11, 2024
Vendor
Google
Product
Android
Classifications
CWE-203, CAPEC-189, T1418
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 11, 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=14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=14

Published CVSS scores

5.5NVDCVSS: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-203Observable Discrepancy
CAPEC-189Black Box Reverse Engineering
T1418Software Discovery

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