CVE-2021-0152

Local denial of service via installer signature verification

Published Nov 17, 2021 · Updated Aug 3, 2024

Improper signature verification in Intel Wireless Bluetooth and Killer Bluetooth installers for Windows 10 allows authenticated users to trigger denial of service via local access. The installer accepts an improperly verified cryptographic signature, enabling a local authenticated user to invoke the vulnerable installation path and interrupt service. Exploitation requires local access and user interaction; Intel reports denial-of-service impact without confidentiality impact.

CVSS severity4.6
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in Intel Wireless Bluetooth and Killer Bluetooth installers for Windows 10 allows authenticated users to trigger denial of service via local access. The installer accepts an improperly verified cryptographic signature, enabling a local authenticated user to invoke the vulnerable installation path and interrupt service. Exploitation requires local access and user interaction; Intel reports denial-of-service impact without confidentiality impact.

The record

CVE
CVE-2021-0152
Published
Nov 17, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-347, T1499
Attack vector
local
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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.6Intel CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:L
2.1NIST NVDAV:L/AC:L/Au:N/C:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
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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