CVE-2021-1638

Windows Bluetooth Security Feature Bypass Vulnerability

En bref

Sévérité: HIGH 7.7
EPSS: EPSS 1.23 % · centile 69 (2026-10-27)
État: PUBLISHED
Publiée: 2021-01-12
Mise à jour: 2024-10-08
Attribuée par: microsoft
Statut NVD: Modified

Description

Microsoft is aware of the "Impersonation in the Passkey Entry Protocol" vulnerability. For more information regarding the vulnerability, please see this statement from the Bluetooth SIG. To address the vulnerability, Microsoft has released a software update that will fail attempts to pair if the remote device exchanges a public key with the same X coordinate as the locally exchanged public key

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 7.7	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.7	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	NVD · secure@microsoft.com (Secondary)
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	NVD · nvd@nist.gov (Secondary)
CVSS 2.0	LOW 2.1	AV:L/AC:L/Au:N/C:P/I:N/A:N	NVD · nvd@nist.gov (Primary)

Références européennes

ENISA EUVD · EUVD-2021-7105
GCVE · GCVE-0-2021-1638

Avis du CERT-FR

CERTFR-2021-AVI-027 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

Produits affectés

Produit	Versions
Microsoft · Windows 10 Version 20H2	affected 10.0.0 < publication
Microsoft · Windows Server version 20H2	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1803	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1809	affected 10.0.0 < publication
Microsoft · Windows Server 2019	affected 10.0.0 < publication
Microsoft · Windows Server 2019 (Server Core installation)	affected 10.0.0 < publication
Microsoft · Windows 10 Version 1909	affected 10.0.0 < publication
Microsoft · Windows Server, version 1909 (Server Core installation)	affected 10.0.0 < publication
Microsoft · Windows 10 Version 2004	affected 10.0.0 < publication
Microsoft · Windows Server version 2004	affected 10.0.0 < publication

Références

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD