CVE-2022-47520

Local system crash via unchecked RSN offsets

Published Dec 18, 2022 · Updated Apr 17, 2025

An out-of-bounds read in the Linux kernel before 6.0.11 allows local users to crash a system through a crafted RSN information element. In wilc_parse_join_bss_param, untrusted pairwise and authentication suite counts advance an offset used to copy RSN capabilities without confirming that the resulting position remains inside the element. Exploitation requires low-privileged local access to submit the Netlink data to an active WILC1000 wireless driver, and the documented consequence is a kernel crash.

CVSS severity7.1
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in the Linux kernel before 6.0.11 allows local users to crash a system through a crafted RSN information element. In wilc_parse_join_bss_param, untrusted pairwise and authentication suite counts advance an offset used to copy RSN capabilities without confirming that the resulting position remains inside the element. Exploitation requires low-privileged local access to submit the Netlink data to an active WILC1000 wireless driver, and the documented consequence is a kernel crash.

The record

CVE
CVE-2022-47520
Published
Dec 18, 2022
Updated
Apr 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
authenticated

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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application 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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