CVE-2022-42755

WLAN service interruption via unchecked driver write

Published Dec 6, 2022 · Updated Apr 23, 2025

Out-of-bounds write in Unisoc WLAN firmware on affected chipsets allows local users to interrupt WLAN services through unchecked input. The driver fails to bounds-check an unspecified input before a write, but Unisoc has not disclosed the affected routine or input field. Local access with no prior privileges or user interaction is sufficient; Unisoc documents denial of service in WLAN services.

CVSS severity7.3
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Unisoc WLAN firmware on affected chipsets allows local users to interrupt WLAN services through unchecked input. The driver fails to bounds-check an unspecified input before a write, but Unisoc has not disclosed the affected routine or input field. Local access with no prior privileges or user interaction is sufficient; Unisoc documents denial of service in WLAN services.

The record

CVE
CVE-2022-42755
Published
Dec 6, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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

7.3UnisocCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/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-787Out-of-bounds Write
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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