Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability (Microsoft Remote Desktop Web Client)

CVE-2026-56171

HIGH 7.1

En bref

Source: NVD
EPSS: EPSS 0.66 % · centile 51 (2026-10-29)
État: PUBLISHED
Publiée: 2026-07-17 21:34 UTC
Mise à jour: 2026-10-28 20:07 UTC
Attribuée par: microsoft
Statut NVD: Analyzed

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Description

Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.

Faiblesses (CWE)

CWE-359 — Exposure of Private Personal Information to an Unauthorized Actor

Références

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56171

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N	NVD · secure@microsoft.com (Secondary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	NVD · nvd@nist.gov (Primary)

Références européennes

ENISA EUVD · EUVD-2026-45345
GCVE · GCVE-0-2026-56171

Avis du CERT-FR

CERTFR-2026-AVI-0896 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
CERTFR-2026-AVI-0895 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:microsoft:remote_desktop_web_client:*:*:*:*:*:*:*:* < 2.1.65.2
cpe:2.3:a:microsoft:windows_admin_center:*:*:*:*:*:*:*:* < 2606

Produits affectés

Produit	Versions
Microsoft · Remote Desktop Web Client	affected 2.0.0.0 < 2.1.65.2
Microsoft · Windows Admin Center	affected 1809.0 < 2.7.4

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