Google Android 15/16 NotificationChannel.java input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$5k-$25k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Google Android 15/16. Affected is an unknown function of the file NotificationChannel.java. Performing a manipulation results in input validation. This vulnerability is known as CVE-2025-48556. Attacking locally is a requirement. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Google Android 15/16. This affects some unknown functionality of the file NotificationChannel.java. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In multiple methods of NotificationChannel.java, there is a possible desynchronization from persistence due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

It is possible to read the advisory at android.googlesource.com. This vulnerability is uniquely identified as CVE-2025-48556 since 05/22/2025. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/07/2025).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1944). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Google Android

Productinfo

Type

Vendor

Name

Version

License

Website

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: Input validation
CWE: CWE-20
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

05/22/2025 CVE reserved
09/04/2025 +105 days Advisory disclosed
09/04/2025 +0 days VulDB entry created
09/07/2025 +3 days VulDB entry last update

Sourcesinfo

Vendor: google.com

Advisory: android.googlesource.com
Status: Confirmed

CVE: CVE-2025-48556 (🔒)
GCVE (CVE): GCVE-0-2025-48556
GCVE (VulDB): GCVE-100-322695
CERT Bund: WID-SEC-2025-1944 - Android Patchday September 2025: Multiple Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 09/04/2025 22:06
Updated: 09/07/2025 16:48
Changes: 09/04/2025 22:06 (55), 09/07/2025 16:48 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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