CVE-2023-40107

Local privilege escalation via uninitialized VPS pointer

Published Feb 15, 2024 · Updated Aug 21, 2024

Use-after-free in ARTPWriter on Google Android 12, 12L, 13, and 14 allows local users to escalate privileges without interaction. ARTPWriter leaves its VPS buffer pointer uninitialized, so destruction immediately after construction can free an indeterminate address. Exploitation requires local code execution on an affected Android device, grants higher privileges, and requires no user interaction.

CVSS severity7.8
High
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

Use-after-free in ARTPWriter on Google Android 12, 12L, 13, and 14 allows local users to escalate privileges without interaction. ARTPWriter leaves its VPS buffer pointer uninitialized, so destruction immediately after construction can free an indeterminate address. Exploitation requires local code execution on an affected Android device, grants higher privileges, and requires no user interaction.

The record

CVE
CVE-2023-40107
Published
Feb 15, 2024
Updated
Aug 21, 2024
Vendor
Google
Product
Android
Classifications
CWE-416, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 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=12
  2. Affected versionversion=12.0
  3. Affected versionversion=12.0l
  4. Affected versionversion=12L
  5. Affected versionversion=13
  6. Affected versionversion=13.0
  7. Affected versionversion=14
  8. Affected versionversion=14.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=12; version=12.0; version=12.0l; version=12L; version=13; version=13.0; version=14; version=14.0

Published CVSS scores

7.4CISA-ADPCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS: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-416Use After Free
T1404Exploitation for Privilege Escalation

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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