CVE-2022-48440

Local dialer interruption via missing permission check

Published Jun 6, 2023 · Updated Jan 7, 2025

Denial of service in Unisoc chipsets running Android 10 through 13 allows local users to interrupt the dialer service without privileges. The dialer service fails to perform a required permission check before processing a local request, but Unisoc has not disclosed the affected entry point or failure path. A local process needs no additional execution privileges; exploitation denies dialer availability, while the vendor has not specified whether the service hangs, crashes, or restarts.

CVSS severity6.2
Medium
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

Denial of service in Unisoc chipsets running Android 10 through 13 allows local users to interrupt the dialer service without privileges. The dialer service fails to perform a required permission check before processing a local request, but Unisoc has not disclosed the affected entry point or failure path. A local process needs no additional execution privileges; exploitation denies dialer availability, while the vendor has not specified whether the service hangs, crashes, or restarts.

The record

CVE
CVE-2022-48440
Published
Jun 6, 2023
Updated
Jan 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, CWE-400, T1642
Attack vector
local
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.2CISA-ADPCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
6.2UNISOCCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/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-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
T1642Endpoint 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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