CVE-2021-1008

Device lockout via unsupported remote subscriptions

Published Dec 15, 2021 · Updated Aug 3, 2024

Denial of service in SubscriptionController in Android 12 allows local users to leave a device requiring a factory reset through remote subscriptions. The addSubInfo method allowed remote subscriptions without checking FEATURE_AUTOMOTIVE, permitting active subscription counts beyond supported limits. Exploitation requires System execution privileges and no user interaction; the resulting lockout can only be cleared by resetting the device.

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

Denial of service in SubscriptionController in Android 12 allows local users to leave a device requiring a factory reset through remote subscriptions. The addSubInfo method allowed remote subscriptions without checking FEATURE_AUTOMOTIVE, permitting active subscription counts beyond supported limits. Exploitation requires System execution privileges and no user interaction; the resulting lockout can only be cleared by resetting the device.

The record

CVE
CVE-2021-1008
Published
Dec 15, 2021
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
T1642
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?

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  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

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1642Endpoint Denial of Service

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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