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CVE-2026-21521
HIGH7.4
Description
Improper neutralization of escape, meta, or control sequences in Copilot allows an unauthorized attacker to disclose information over a network.
Details CVE
Score CVSS v3.17.4
SeveriteHIGH
Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Vecteur d'attaqueNETWORK
ComplexiteLOW
Privileges requisNONE
Interaction utilisateurREQUIRED
Publie1/22/2026
Derniere modification2/2/2026
Sourcenvd
Observations honeypot0
Produits affectes
microsoft:365_word_copilot
Faiblesses (CWE)
CWE-150
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21521(secure@microsoft.com)
Correlations IOC
Aucune correlation enregistree
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