CVE-2026-87692

Microsoft Exchange Server Elevation of Privilege Vulnerability

En bref

Sévérité
HIGH 7.8
EPSS
EPSS 1.68 % · centile 77 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
microsoft
Statut NVD
Undergoing Analysis

Description

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Cmicrosoft
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · secure@microsoft.com (Secondary)

Faiblesses (CWE)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23affected 15.01.0.0 < 15.01.2507.077
Microsoft · Microsoft Exchange Server 2019 Cumulative Update 14affected 15.02.0.0 < 15.02.1544.050
Microsoft · Microsoft Exchange Server Subscription Edition RTMaffected 15.02.0.0 < 15.02.2562.056

Références

Sources

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