CVE-2021-0053

Authenticated information disclosure via uninitialized firmware state

Published Nov 17, 2021 · Updated Aug 3, 2024

Improper initialization in Intel wireless firmware on Windows 10 allows remote authenticated users to disclose information via adjacent access. Intel has not published which firmware state is left uninitialized or how adjacent input exposes information. An authenticated user within wireless range is required; the published impact is limited to information disclosure.

CVSS severity4.6
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper initialization in Intel wireless firmware on Windows 10 allows remote authenticated users to disclose information via adjacent access. Intel has not published which firmware state is left uninitialized or how adjacent input exposes information. An authenticated user within wireless range is required; the published impact is limited to information disclosure.

The record

CVE
CVE-2021-0053
Published
Nov 17, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-665
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.7NIST NVDAV:A/AC:L/Au:S/C:P/I:N/A:N
5.7NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.6IntelCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-665Improper Initialization

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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