CVE-2022-47456

WLAN service interruption via buffer over-read

Published Mar 7, 2023 · Updated Mar 5, 2025

Buffer over-read in the WLAN driver for Unisoc chipsets on Android 10 through 12 allows local users to interrupt WLAN services. The driver fails to validate unspecified parameters before reading beyond a buffer boundary; Unisoc has not disclosed the affected routine or parameter. Local access is sufficient, and no user interaction is required; exploitation interrupts the device's WLAN service without a reported confidentiality or integrity impact.

CVSS severity6.2
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer over-read in the WLAN driver for Unisoc chipsets on Android 10 through 12 allows local users to interrupt WLAN services. The driver fails to validate unspecified parameters before reading beyond a buffer boundary; Unisoc has not disclosed the affected routine or parameter. Local access is sufficient, and no user interaction is required; exploitation interrupts the device's WLAN service without a reported confidentiality or integrity impact.

The record

CVE
CVE-2022-47456
Published
Mar 7, 2023
Updated
Mar 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-126, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 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

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.2UnisocCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-126Buffer Over-read
T1499Endpoint Denial of Service

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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