CVE-2025-64677

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.

CVSS 3.1

8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2025-12-18

Modified

2026-10-01

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:office_out-of-box_experience

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64677

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