Vulnerability Details CVE-2026-78517
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 46.4%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-78517
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cpe:2.3:a:microsoft:365_apps:-
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cpe:2.3:a:microsoft:microsoft_365:-
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cpe:2.3:a:microsoft:office_2019:-
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cpe:2.3:a:microsoft:office_2021:-
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cpe:2.3:a:microsoft:office_2024:-
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cpe:2.3:a:microsoft:word:2016