What is CVE-2021-0991?

CVE-2021-0991 is a low-severity vulnerability in Google Android, classified under Insertion of Sensitive Information into Log File. CVSS score: 2.4/10. Published 2021-12-15.

How severe is CVE-2021-0991?

Low severity. CVSS v3 base score is 2.4 out of 10.

Information disclosure in Google Android

CVE-2021-0991

In OnMetadataChangedListener of AdvancedBluetoothDetailsHeaderController.java, there is a possible leak of Bluetooth MAC addresses due to log information disclosure. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-181588752

Published 2021-12-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (3.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android — versions 12.0
Android — versions Android-12

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

source.android.com/security/bulletin/pixel/2021-12-01 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0991?: CVE-2021-0991 is a low-severity vulnerability in Google Android, classified under Insertion of Sensitive Information into Log File. CVSS score: 2.4/10. Published 2021-12-15.
How severe is CVE-2021-0991?: Low severity. CVSS v3 base score is 2.4 out of 10.