CVE-2021-1006

Bluetooth MAC address disclosure via unredacted logging

Published Dec 15, 2021 · Updated Aug 3, 2024

Information disclosure in Android 12 Bluetooth DatabaseManager allows local users with System privileges to read Bluetooth MAC addresses. Several methods wrote unredacted device addresses into BluetoothDatabase log messages; the patch replaces those values with a fixed masked address. Exploitation requires local System-level execution and no user interaction, and the disclosed data is limited to Bluetooth MAC addresses.

CVSS severity4.4
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Android 12 Bluetooth DatabaseManager allows local users with System privileges to read Bluetooth MAC addresses. Several methods wrote unredacted device addresses into BluetoothDatabase log messages; the patch replaces those values with a fixed masked address. Exploitation requires local System-level execution and no user interaction, and the disclosed data is limited to Bluetooth MAC addresses.

The record

CVE
CVE-2021-1006
Published
Dec 15, 2021
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-1021, T1654
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android-12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google Cloud · Androidversion=Android-12

Published CVSS scores

4.4NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
2.1NIST National Vulnerability DatabaseAV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1021Improper Restriction of Rendered UI Layers or Frames
T1654Log Enumeration

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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