CVE-2025-64677: Microsoft Office Out-Of-Box Experience

High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper neutralization of input during web page generation ('cross-site scripting') in Office Out-of-Box Experience allows an unauthorized attacker to perform spoofing over a network.

Affected products

• Microsoft Office Out-Of-Box Experience: affected versions not specified

Published 2025-12-18. Last modified 2026-10-01.