Vulnerability in Microsoft 365 Apps for Enterprise

[ Description ]Official description

Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

[ Fixes ]Fixes and patches

• Security bulletin: Microsoft Office CVE-2026-100208Vendor patch or bulletin · CERT-FR · msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100208, cited by CERT-FR CERTFR-2026-AVI-1266

[ Advisories ]Government CERT advisories

• CERT-FR6 Oct 2026CERTFR-2026-AVI-1266

  Vulnerability in Microsoft Office Translated from French

  A vulnerability has been discovered in Microsoft Office. It allows an attacker to cause remote arbitrary code execution.

  CVE-2026-100208

[ References ]References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100208Vendor Advisory