CVE-2026-55006

Description

Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

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Produits concernés

• Microsoft Exchange Server 2016 Cumulative Update 23
• Microsoft Exchange Server 2019 Cumulative Update 14
• Microsoft Exchange Server 2019 Cumulative Update 15
• Microsoft Exchange Server Subscription Edition RTM
• Microsoft exchange server
• Microsoft exchange server subscription edition

Scores CVSS

Faiblesses (CWE)

• CWE-1220

Références

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55006 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories