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CVE-2021-26857
HIGHCISA KEV7.8
Descripcion
Microsoft Exchange Server Remote Code Execution Vulnerability
Detalles CVE
Puntuacion CVSS v3.17.8
SeveridadHIGH
Vector CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vector de ataqueLOCAL
ComplejidadLOW
Privilegios requeridosNONE
Interaccion usuarioREQUIRED
Publicado3/3/2021
Ultima modificacion12/18/2025
Fuentekev
Avistamientos honeypot0
CISA KEV
VendedorMicrosoft
ProductoExchange Server
Nombre vulnerabilidadMicrosoft Exchange Server Remote Code Execution Vulnerability
Fecha inclusion KEV2021-11-03
Fecha limite remediacion2022-05-03
Uso en ransomwareKnown
Productos afectados
microsoft:exchange_server
Debilidades (CWE)
CWE-502CWE-502
Referencias
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857(secure@microsoft.com)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857(af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26857(134c704f-9b21-4f2e-91b3-4a467353bcc0)
Correlaciones IOC
Sin correlaciones registradas
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