CVE-2026-20958

Microsoft SharePoint Information Disclosure Vulnerability

En bref

Sévérité: MEDIUM 5.4
EPSS: EPSS 0.35 % · centile 28 (2026-10-27)
État: PUBLISHED
Publiée: 2026-01-13
Mise à jour: 2026-07-30
Attribuée par: microsoft
Statut NVD: Analyzed

Description

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	MEDIUM 5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C	microsoft
CVSS 3.1	MEDIUM 5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N	NVD · secure@microsoft.com (Secondary)

Faiblesses (CWE)

CWE-918

Références européennes

ENISA EUVD · EUVD-2026-2107
GCVE · GCVE-0-2026-20958

Avis du CERT-FR

CERTFR-2026-AVI-0046 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:* < 16.0.19127.20442
cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

Produits affectés

Produit	Versions
Microsoft · Microsoft SharePoint Enterprise Server 2016	affected 16.0.0 < 16.0.5535.1001
Microsoft · Microsoft SharePoint Server 2019	affected 16.0.0 < 16.0.10417.20083
Microsoft · Microsoft SharePoint Server Subscription Edition	affected 16.0.0 < 16.0.19127.20442

Références

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20958

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