CVE-2022-42774

Local WLAN service interruption via buffer over-read

Published Dec 6, 2022 · Updated Apr 23, 2025

A buffer over-read in UNISOC WLAN firmware for Android 10 through 12 allows local users to interrupt WLAN services. The WLAN driver omits a bounds check and reads beyond the intended buffer; UNISOC has not published the affected function or input path. Exploitation is local; NVD and CISA require low privileges without user interaction, while UNISOC requires user interaction but no privileges.

CVSS severity6.6
Medium
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

A buffer over-read in UNISOC WLAN firmware for Android 10 through 12 allows local users to interrupt WLAN services. The WLAN driver omits a bounds check and reads beyond the intended buffer; UNISOC has not published the affected function or input path. Exploitation is local; NVD and CISA require low privileges without user interaction, while UNISOC requires user interaction but no privileges.

The record

CVE
CVE-2022-42774
Published
Dec 6, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, CWE-126, T1499.004
Attack vector
local
Privileges
Unavailable

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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.6UNISOCCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CWE-126Buffer Over-read
T1499.004Application or System Exploitation

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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