CVE-2022-47518

Remote system crash via unchecked channel count

Published Dec 18, 2022 · Updated Apr 17, 2025

Heap buffer overflow in the Linux kernel WILC1000 driver before 6.0.11 allows remote attackers to crash systems via Wi-Fi frames. wilc_wfi_cfg_parse_ch_attr trusts each channel-list element's no_of_channels value and passes it to memset without checking that the write remains inside the received buffer. Exposure requires the WILC1000 driver to process a malformed nearby Wi-Fi management frame; the documented consequence is heap corruption that can interrupt the system.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in the Linux kernel WILC1000 driver before 6.0.11 allows remote attackers to crash systems via Wi-Fi frames. wilc_wfi_cfg_parse_ch_attr trusts each channel-list element's no_of_channels value and passes it to memset without checking that the write remains inside the received buffer. Exposure requires the WILC1000 driver to process a malformed nearby Wi-Fi management frame; the documented consequence is heap corruption that can interrupt the system.

The record

CVE
CVE-2022-47518
Published
Dec 18, 2022
Updated
Apr 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
adjacent
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 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 vectoradjacent
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
PrivilegesUnavailable
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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