What is CVE-2021-0705?

CVE-2021-0705 is a high-severity vulnerability in Google Android. CVSS score: 7.8/10. Published 2021-10-22.

How severe is CVE-2021-0705?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-0705 known to be exploited?

15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Android

CVE-2021-0705

In sanitizeSbn of NotificationManagerService.java, there is a possible way to keep service running in foreground and keep granted permissions due to Bypass of Background Service Restrictions. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-10Android ID: A-185388103

EPSS: 0.003 (16.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 10.0, 11.0
N/a Android — versions Android-11 Android-10

Public proof-of-concept exploits

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0705?: CVE-2021-0705 is a high-severity vulnerability in Google Android. CVSS score: 7.8/10. Published 2021-10-22.
How severe is CVE-2021-0705?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0705 known to be exploited?: 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.