CVE-2022-20465Public exploit

Device unlock via stale SIM PUK dismissal

Published Nov 8, 2022 · Updated May 1, 2025

Lockscreen bypass in Google Cloud Android 10 through 13 allows physically proximate attackers to unlock a device without credentials. Concurrent SIM-state handling lets a stale dismiss call arrive after keyguard selects the device credential screen, which treats the call as a successful unlock. Physical access and completion of a SIM PUK unlock are required; no user interaction or prior execution privileges are needed.

CVSS severity4.6
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Lockscreen bypass in Google Cloud Android 10 through 13 allows physically proximate attackers to unlock a device without credentials. Concurrent SIM-state handling lets a stale dismiss call arrive after keyguard selects the device credential screen, which treats the call as a successful unlock. Physical access and completion of a SIM PUK unlock are required; no user interaction or prior execution privileges are needed.

The record

CVE
CVE-2022-20465
Published
Nov 8, 2022
Updated
May 1, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-276
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 8, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 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-10 Android-11 Android-12 Android-12L Android-13

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=Android-10 Android-11 Android-12 Android-12L Android-13

Published CVSS scores

4.6CISA ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

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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