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CVE-2026-20963
CRITICALCISA KEV9.8
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Details CVE
Score CVSS v3.19.8
SeveriteCRITICAL
Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vecteur d'attaqueNETWORK
ComplexiteLOW
Privileges requisNONE
Interaction utilisateurNONE
Publie1/13/2026
Derniere modification4/1/2026
Sourcekev
Observations honeypot0
CISA KEV
FournisseurMicrosoft
ProduitSharePoint
Nom vulnerabiliteMicrosoft SharePoint Deserialization of Untrusted Data Vulnerability
Date ajout KEV2026-03-18
Date limite remediation2026-03-21
Utilise dans ransomwareUnknown
Produits affectes
microsoft:sharepoint_server
Faiblesses (CWE)
CWE-502
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20963(secure@microsoft.com)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20963(134c704f-9b21-4f2e-91b3-4a467353bcc0)
Correlations IOC
Aucune correlation enregistree
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