CVE-2021-34451EPSS p77.5%

CVE-2021-34451CVE-2021-34451

microsoft / office_online_server

Description

Microsoft Office Online Server Spoofing Vulnerability

Scoring

CVSS 5.3 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS1.78% probability of exploitation · percentile 77.5% · 2026-10-05T12:00:23Z
Last modified2026-08-10
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.