CVE-2021-33113

Information disclosure or service interruption

Published Feb 9, 2022 · Updated May 5, 2025

Improper input validation in Intel PROSet/Wireless WiFi and Killer WiFi allows physically proximate attackers to disclose data or interrupt service. Intel has not disclosed the input-processing locus, the rejected validation rule, or the crafted wireless input that triggers the flaw. Exploitation requires adjacent wireless access but no authentication or user interaction, and the documented effects are limited to information disclosure and service interruption.

CVSS severity7.1
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Intel PROSet/Wireless WiFi and Killer WiFi allows physically proximate attackers to disclose data or interrupt service. Intel has not disclosed the input-processing locus, the rejected validation rule, or the crafted wireless input that triggers the flaw. Exploitation requires adjacent wireless access but no authentication or user interaction, and the documented effects are limited to information disclosure and service interruption.

The record

CVE
CVE-2021-33113
Published
Feb 9, 2022
Updated
May 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 9, 2022CVE publishedPublication date reported by the CVE source.
  2. May 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.1IntelCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
8.1CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
4.8NIST NVDAV:A/AC:L/Au:N/C:P/I:N/A:P

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
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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