CVE-2022-48438

Local service interruption via unchecked driver write

Published Jun 6, 2023 · Updated Jan 7, 2025

An out-of-bounds write in the cp_dump driver on Unisoc chipsets running Android 11 through Android 13 allows local users to interrupt service. The cp_dump kernel driver omits a bounds check before a write, allowing data to pass beyond the intended buffer. System-level execution privileges and user interaction are required, and the documented consequence is a local service interruption.

CVSS severity7.3
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

An out-of-bounds write in the cp_dump driver on Unisoc chipsets running Android 11 through Android 13 allows local users to interrupt service. The cp_dump kernel driver omits a bounds check before a write, allowing data to pass beyond the intended buffer. System-level execution privileges and user interaction are required, and the documented consequence is a local service interruption.

The record

CVE
CVE-2022-48438
Published
Jun 6, 2023
Updated
Jan 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
7.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
7.3UNISOCCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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