Windows DNS Server Remote Code Execution Vulnerability (Microsoft Windows Server 2019)

CVE-2026-62817

HIGH 8.8

En bref

Source: NVD
EPSS: EPSS 0.53 % · centile 45 (2026-10-31)
État: PUBLISHED
Publiée: 2026-08-11 17:04 UTC
Mise à jour: 2026-10-30 17:20 UTC
Attribuée par: microsoft
Statut NVD: Analyzed

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Description

Out-of-bounds write in Windows DNS allows an unauthorized attacker to execute code over an adjacent network.

Faiblesses (CWE)

CWE-787 — Écriture hors limites

Références

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62817

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · secure@microsoft.com (Secondary)

Références européennes

ENISA EUVD · EUVD-2026-56394
GCVE · GCVE-0-2026-62817

Avis du CERT-FR

CERTFR-2026-AVI-1001 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* < 10.0.17763.9121
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* < 10.0.17763.9121
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* < 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* < 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* < 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* < 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* < 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* < 10.0.19045.7663
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* < 10.0.22631.7517
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* < 10.0.22631.7517
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* < 10.0.26100.9106
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* < 10.0.26100.9106
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* < 10.0.26200.9106
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* < 10.0.26200.9106
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* < 10.0.28000.2704
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* < 10.0.28000.2704
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* < 10.0.17763.9121
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* < 10.0.20348.5440
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* < 10.0.26100.33222

Produits affectés

Produit	Versions
Microsoft · Windows Server 2019	affected 10.0.17763.0 < 10.0.17763.9121
Microsoft · Windows Server 2019 (Server Core installation)	affected 10.0.17763.0 < 10.0.17763.9121
Microsoft · Windows Server 2022	affected 10.0.20348.0 < 10.0.20348.5499
Microsoft · Windows Server 2025	affected 10.0.26100.0 < 10.0.26100.33296
Microsoft · Windows Server 2025 (Server Core installation)	affected 10.0.26100.0 < 10.0.26100.33296

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