CVE-2023-3781

Local privilege escalation via gxpmappingput use-after-free

Published Oct 11, 2023 · Updated Sep 18, 2024

Use-after-free in gxpmappingput in Google Android kernel allows local users to elevate privileges by triggering a freed-memory write. The gxpmappingput path performs a write after the target object has been freed because access is not locked correctly. Exploitation requires local code execution on an affected Android device, needs no user interaction or additional execution privileges, and results in elevated privilege.

CVSS severity7.8
High
EPSS probability0.07%
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 gxpmappingput in Google Android kernel allows local users to elevate privileges by triggering a freed-memory write. The gxpmappingput path performs a write after the target object has been freed because access is not locked correctly. Exploitation requires local code execution on an affected Android device, needs no user interaction or additional execution privileges, and results in elevated privilege.

The record

CVE
CVE-2023-3781
Published
Oct 11, 2023
Updated
Sep 18, 2024
Vendor
Google
Product
Android
Classifications
CWE-667, T1068
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

7.8NIST 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.

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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

CWE-667Improper Locking
T1068Exploitation for Privilege Escalation

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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