CVE-2026-55008

Microsoft Exchange Server Spoofing Vulnerability

En bref

Sévérité
CRITICAL 9.6
EPSS
EPSS 0.86 % · centile 58 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
microsoft
Statut NVD
Analyzed

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Cmicrosoft
CVSS 3.1CRITICAL 9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HNVD · secure@microsoft.com (Secondary)

Faiblesses (CWE)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23affected 15.01.0.0 < 15.01.2507.071
Microsoft · Microsoft Exchange Server 2019 Cumulative Update 14affected 15.02.0.0 < 15.02.1544.043
Microsoft · Microsoft Exchange Server 2019 Cumulative Update 15affected 15.02.0.0 < 15.02.1748.048
Microsoft · Microsoft Exchange Server Subscription Edition RTMaffected 15.02.0.0 < 15.02.2562.045

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