Google Android 10.0/11.0/12.0/13.0 AccessibilityManagerService.java onPackageRemoved control flow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Google Android 10.0/11.0/12.0/13.0. Affected by this issue is the function onPackageRemoved of the file AccessibilityManagerService.java. Such manipulation leads to an unknown weakness. This vulnerability is documented as CVE-2023-20921. The attack needs to be performed locally. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Google Android 10.0/11.0/12.0/13.0 (Smartphone Operating System) and classified as problematic. Affected by this issue is the function onPackageRemoved of the file AccessibilityManagerService.java. Using CWE to declare the problem leads to CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In onPackageRemoved of AccessibilityManagerService.java, there is a possibility to automatically grant accessibility services due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12L Android-13Android ID: A-243378132

The weakness was released 01/27/2023 as A-243378132. The advisory is available at source.android.com. This vulnerability is handled as CVE-2023-20921 since 11/03/2022. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/03/2025). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-25089). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Control flow
CWE: CWE-670
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
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

11/03/2022 🔍
01/27/2023 +85 days 🔍
01/27/2023 +0 days 🔍
09/03/2025 +950 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-243378132
Status: Confirmed

CVE: CVE-2023-20921 (🔍)
GCVE (CVE): GCVE-0-2023-20921
GCVE (VulDB): GCVE-100-219506
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 01/27/2023 10:52
Updated: 09/03/2025 17:50
Changes: 01/27/2023 10:52 (41), 02/20/2023 14:00 (1), 09/03/2025 17:50 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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