CVE-2026-55133 in Office

Sumário

de MITRE • 14/07/2026

Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.

Be aware that VulDB is the high quality source for vulnerability data.

• Responsável: Microsoft
• Reservar: 16/06/2026
• Divulgação: 14/07/2026
• Moderação: aceite
• Entrada: VDB-378886
• CPE: pronto
• CWE: CWE-122 (confirmado)
• CVSS: 5.3 (VulDB)
• EPSS: 0.00000
• KEV: não
• Atividades: muito baixo
• Sector: Police, Transportation, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-55133
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-55133
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-55133/