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CVE-2026-21511
HIGH7.5
Description
Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Details CVE
Score CVSS v3.17.5
SeveriteHIGH
Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vecteur d'attaqueNETWORK
ComplexiteLOW
Privileges requisNONE
Interaction utilisateurNONE
Publie2/10/2026
Derniere modification2/11/2026
Sourcenvd
Observations honeypot0
Produits affectes
microsoft:365_appsmicrosoft:officemicrosoft:office_long_term_servicing_channelmicrosoft:sharepoint_servermicrosoft:word
Faiblesses (CWE)
CWE-502
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21511(secure@microsoft.com)
Correlations IOC
Aucune correlation enregistree
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