Vulnerability · Published Mar 16, 2022 · Assigned by google_android

CVE-2021-39704

High 7.8

In plain English

A high-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS NVD)7.8High

Exploit odds (30 days)0.2%top 89.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack tooling1Public PoC

Official description

In deleteNotificationChannelGroup of NotificationManagerService.java, there is a possible way to run foreground service without user notification due to a permissions bypass. 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-209965481

Affected products (as reported)

Vendor	Product	Versions
n/a	Android	Android-10 Android-11 Android-12

References

https://source.android.com/security/bulletin/2022-03-01 x_refsource_MISC