CVE-2026-78510
CRITICAL
microsoft
365_apps, microsoft_365, office_2016, office_2019, office_2021, office_2024
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Sep 08, 2026
Vendor
microsoft
Description
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.