Vulnerability Details CVE-2026-78518
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 56.9%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-78518
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cpe:2.3:a:microsoft:365_apps:-
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cpe:2.3:a:microsoft:excel:2016
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cpe:2.3:a:microsoft:microsoft_365:-
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cpe:2.3:a:microsoft:office_2016:-
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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:-