vulnerability Vulnérabilité dans Microsoft Office (21 août 2026) A vulnerability has been discovered in Microsoft Office that could allow an attacker to compromise data confidentiality. Affected versions of Office, including Office 365 and Office 2019, require immediate patching to prevent exploitation. The vulnerability is detailed in Microsoft's security bulletin. CERT-FR · Aug 21, 2026 Medium CVE-2026-70105vulnerabilitymicrosoftpatch