CVE-2023-20930

Boot-loop denial of service via unbounded shortcuts

Published May 15, 2023 · Updated Jan 24, 2025

Resource exhaustion in Android 11, 12, 12L, and 13 allows local users to force a device into a boot loop via dynamic shortcut publication. ShortcutPackage.pushDynamicShortcut can keep accumulating shortcuts per application because it does not enforce a system-wide maximum, including when previously removed entries are republished. An installed app needs no additional execution privileges or user interaction, and exhausting system memory leaves the device repeatedly unable to complete startup.

CVSS severity5.5
Medium
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Android 11, 12, 12L, and 13 allows local users to force a device into a boot loop via dynamic shortcut publication. ShortcutPackage.pushDynamicShortcut can keep accumulating shortcuts per application because it does not enforce a system-wide maximum, including when previously removed entries are republished. An installed app needs no additional execution privileges or user interaction, and exhausting system memory leaves the device repeatedly unable to complete startup.

The record

CVE
CVE-2023-20930
Published
May 15, 2023
Updated
Jan 24, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-770, CWE-400, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 2025Record 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-11 Android-12 Android-12L Android-13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android-11 Android-12 Android-12L Android-13

Published CVSS scores

5.5CISACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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