CVE-2023-40114

Local privilege escalation via detached MTP thread

Published Feb 15, 2024 · Updated Aug 15, 2024

Use-after-free in Android 11 through 14 allows local users to escalate privileges through user-triggered MTP handling. A detached MtpFfsHandle worker thread accesses object state after close() frees the object because teardown does not wait for that thread to finish. Exploitation requires user interaction and local execution on an affected Android device, after which attacker-controlled memory corruption can obtain elevated privileges.

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

Use-after-free in Android 11 through 14 allows local users to escalate privileges through user-triggered MTP handling. A detached MtpFfsHandle worker thread accesses object state after close() frees the object because teardown does not wait for that thread to finish. Exploitation requires user interaction and local execution on an affected Android device, after which attacker-controlled memory corruption can obtain elevated privileges.

The record

CVE
CVE-2023-40114
Published
Feb 15, 2024
Updated
Aug 15, 2024
Vendor
Google
Product
Android
Classifications
CWE-416, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=11
  2. Affected versionversion=11.0
  3. Affected versionversion=12
  4. Affected versionversion=12.0
  5. Affected versionversion=12l
  6. Affected versionversion=12L
  7. Affected versionversion=13
  8. Affected versionversion=13.0
  9. Affected versionversion=14
  10. Affected versionversion=14.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Google · Androidversion=11; version=11.0; version=12; version=12.0; version=12l; version=12L; version=13; version=13.0; version=14; version=14.0

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4CISA-ADPCVSS:3.1/AV:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation 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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