Google Android 12.0/13.0 Lockscreen NotificationLockscreenUserManagerImpl.java updatePublicMode information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Google Android 12.0/13.0 and classified as problematic. Affected is the function updatePublicMode of the file NotificationLockscreenUserManagerImpl.java of the component Lockscreen. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2022-20497. The attack is restricted to local execution. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as problematic was found in Google Android 12.0/13.0 (Smartphone Operating System). This vulnerability affects the function updatePublicMode of the file NotificationLockscreenUserManagerImpl.java of the component Lockscreen. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

In updatePublicMode of NotificationLockscreenUserManagerImpl.java, there is a possible way to reveal sensitive notifications on the lockscreen due to an incorrect state transition. This could lead to local information disclosure with physical access required and an app that runs above the lockscreen, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12L Android-13Android ID: A-246301979

The weakness was disclosed 12/13/2022 as A-246301979. The advisory is shared for download at source.android.com. This vulnerability was named CVE-2022-20497 since 10/14/2021. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-25757). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.6
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/14/2021 🔍
12/13/2022 +425 days 🔍
12/13/2022 +0 days 🔍
04/18/2026 +1222 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-246301979
Status: Confirmed

CVE: CVE-2022-20497 (🔍)
GCVE (CVE): GCVE-0-2022-20497
GCVE (VulDB): GCVE-100-215632
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 12/13/2022 23:02
Updated: 04/18/2026 13:40
Changes: 12/13/2022 23:02 (44), 01/09/2023 07:49 (11), 04/18/2026 13:40 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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