CVE-2023-40117

Lockscreen bypass via FRP setting reset

Published Oct 27, 2023 · Updated Apr 29, 2025

Incorrect authorization in Android 11, 12, 12L, and 13 allows local users to bypass Factory Reset Protection and gain elevated access. The resetSettingsLocked path lets RescueParty reset secure_frp_mode, removing FRP restrictions and permitting a new lockscreen credential. Exploitation requires local low-privileged access and repeated Settings process crashes to trigger RescueParty; no user interaction is required.

CVSS severity7.8
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Android 11, 12, 12L, and 13 allows local users to bypass Factory Reset Protection and gain elevated access. The resetSettingsLocked path lets RescueParty reset secure_frp_mode, removing FRP restrictions and permitting a new lockscreen credential. Exploitation requires local low-privileged access and repeated Settings process crashes to trigger RescueParty; no user interaction is required.

The record

CVE
CVE-2023-40117
Published
Oct 27, 2023
Updated
Apr 29, 2025
Vendor
Google
Product
Android
Classifications
CWE-863, T1626, T1461
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=11
  2. Affected versionversion=12
  3. Affected versionversion=12L
  4. Affected versionversion=13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=11; version=12; version=12L; version=13

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1626Abuse Elevation Control Mechanism
T1461Lockscreen Bypass

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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