ZeroHour

CVE-2026-45463

CVSS 3.1
8.4 high
EPSS
<1%p30
Published
()
Modified
Description

Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.

Vendors
microsoft
Products
365 apps, 365 copilot, microsoft 365, office 2016, office 2019, office 2021, office 2024
Weakness
CWE-121, CWE-191
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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