CVE-2026-69805

.NET Elevation of Privilege Vulnerability

En bref

Sévérité: HIGH 7.5
EPSS: EPSS 0.50 % · centile 42 (2026-10-27)
État: PUBLISHED
Publiée: 2026-09-08
Mise à jour: 2026-10-14
Attribuée par: microsoft
Statut NVD: Analyzed

Description

External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network.

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · secure@microsoft.com (Secondary)
CVSS 3.1	HIGH 8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Références européennes

ENISA EUVD · EUVD-2026-73721
GCVE · GCVE-0-2026-69805

Avis du CERT-FR

CERTFR-2026-AVI-1149 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:microsoft:microsoft.diagnostics.runtime:*:*:*:*:*:*:*:* < 4.1.740301
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* ≥ 17.14.0 < 17.14.40
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* ≥ 18.9.0 < 18.9.3

Produits affectés

Produit	Versions
Microsoft · Microsoft Visual Studio 2022 version 17.14	affected 17.14.0 < 17.14.40
Microsoft · Microsoft Visual Studio 2026 version 18.9	affected 18.9.0 < 18.9.3
Microsoft · Microsoft.Diagnostics.Runtime	affected 4.1.740301 < 4.1.740301

Références

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69805

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