CVE-2026-55009 in Exchange Server

Sumário

de MITRE • 14/07/2026

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Responsável: Microsoft
• Reservar: 16/06/2026
• Divulgação: 14/07/2026
• Moderação: aceite
• Entrada: VDB-378502
• CPE: pronto
• CWE: CWE-502 (confirmado)
• CVSS: 3.3 (VulDB)
• EPSS: 0.00000
• KEV: não
• Atividades: muito baixo
• Sector: Chemical, Hospital, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-55009
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-55009
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-55009/