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CVE-2026-21258
MEDIUM5.5
Description
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Details CVE
Score CVSS v3.15.5
SeveriteMEDIUM
Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Vecteur d'attaqueLOCAL
ComplexiteLOW
Privileges requisNONE
Interaction utilisateurREQUIRED
Publie2/10/2026
Derniere modification2/11/2026
Sourcenvd
Observations honeypot0
Produits affectes
microsoft:365_appsmicrosoft:excelmicrosoft:officemicrosoft:office_long_term_servicing_channelmicrosoft:office_online_server
Faiblesses (CWE)
CWE-20CWE-125
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21258(secure@microsoft.com)
Correlations IOC
Aucune correlation enregistree
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