CVE-2026-64918

Insufficiently protected credentials in Microsoft Office allows an unauthorized attacker to perform spoofing over a network.

  • Published Sep 8, 2026
  • CVSS 6.5 medium
  • 0.9% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-64918 at the National Vulnerability Database