CVE-2023-48423Network attack vector

Remote code execution via missing bounds check

Published Dec 8, 2023 · Updated Aug 2, 2024

An out-of-bounds write in dhcp4_Main.c in Google Android kernel allows remote attackers to execute code over network. The dhcp4_SetPDNAddress function writes beyond a buffer because it omits a bounds check on DHCP address data. Exploitation requires no privileges or user interaction, and successful attacks can compromise confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in dhcp4_Main.c in Google Android kernel allows remote attackers to execute code over network. The dhcp4_SetPDNAddress function writes beyond a buffer because it omits a bounds check on DHCP address data. Exploitation requires no privileges or user interaction, and successful attacks can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2023-48423
Published
Dec 8, 2023
Updated
Aug 2, 2024
Vendor
Google
Product
Android
Classifications
CWE-787, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Google · Androidversion=Android kernel

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1210Exploitation of Remote Services

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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