CVE-2023-40142

Local privilege escalation via carrier restriction bypass

Published Oct 11, 2023 · Updated Sep 18, 2024

Elevation of privilege in Google Android kernel allows local users to bypass carrier restrictions through an oobconfig logic flaw. The oobconfig component applies carrier-restriction checks incorrectly, allowing a local process to reach operations intended for higher-privileged contexts. Exploitation requires local access but no user interaction or additional execution privileges, and results in privilege escalation rather than a network compromise.

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

Elevation of privilege in Google Android kernel allows local users to bypass carrier restrictions through an oobconfig logic flaw. The oobconfig component applies carrier-restriction checks incorrectly, allowing a local process to reach operations intended for higher-privileged contexts. Exploitation requires local access but no user interaction or additional execution privileges, and results in privilege escalation rather than a network compromise.

The record

CVE
CVE-2023-40142
Published
Oct 11, 2023
Updated
Sep 18, 2024
Vendor
Google
Product
Android
Classifications
T1548
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=Android kernel

Published CVSS scores

7.8NVDCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1548Abuse Elevation Control Mechanism

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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