High severity7.8NVD Advisory· Published Apr 12, 2022· Updated Jun 17, 2026

CVE-2021-39808

Description

In createNotificationChannelGroup of PreferencesHelper.java, there is a possible way for a service to run in foreground without user notification due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-209966086

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Google/Android SDKcpe-rescue
Google/Androidllm-fuzzy
Range: 10, 11, 12

Patches

Vulnerability mechanics

References

source.android.com/security/bulletin/2022-04-01nvdPatchVendor Advisory

News mentions

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