CVE-2023-20926

Physical privilege escalation via pre-provisioning privacy-chip click

Published Mar 24, 2023 · Updated Feb 28, 2025

Missing authorization in Android 12, 12L, and 13 allows physically proximate attackers to bypass factory reset protection. The HeaderPrivacyIconsController.onParentVisible click handler opens the privacy dialog without first checking whether device provisioning is complete. Exploitation requires physical access to a factory-reset, unprovisioned device; no prior privileges or user interaction are required.

CVSS severity6.8
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Android 12, 12L, and 13 allows physically proximate attackers to bypass factory reset protection. The HeaderPrivacyIconsController.onParentVisible click handler opens the privacy dialog without first checking whether device provisioning is complete. Exploitation requires physical access to a factory-reset, unprovisioned device; no prior privileges or user interaction are required.

The record

CVE
CVE-2023-20926
Published
Mar 24, 2023
Updated
Feb 28, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-862, T1626
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 28, 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-12 Android-12L Android-13

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

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

Published CVSS scores

6.8NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1626Abuse Elevation Control Mechanism

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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