CVE-2026-77898EPSS p47.3%

CVE-2026-77898CVE-2026-77898

microsoft / 365_apps

Description

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

Scoring

CVSS 7.5 ()
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.61% probability of exploitation · percentile 47.3% · 2026-10-05T12:00:23Z
Last modified2026-09-17
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.