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ransomincransom reclama a Kyokuto Kaihatsu Kogyo · JP · Manufacturingransomnova reclama a Phi · Not Foundransomnova reclama a Digipro · Technologyransomnova reclama a Integrated Marketing Services · Business Servicesransomkrybit reclama a eitzchaim.com · IL · Not Foundransomkrybit reclama a formasuniversales.com · MX · Business Servicesransomkrybit reclama a rehabmalaysia.com · MY · Healthcareransomkrybit reclama a www.lagus.cz · CZ · Business Servicesransomgunra reclama a Dissinger and Dissinger Law Firm · US · Business Servicesransomplay reclama a Boston Electric and Telephone · US · Telecommunicationransomplay reclama a Wring Group · GB · Not Foundransomincransom reclama a asa-international.com · GB · Business Servicesransomplay reclama a AG Scholtes · NL · Manufacturingransomplay reclama a Andorra Life · AD · Healthcareransomincransom reclama a Kyokuto Kaihatsu Kogyo · JP · Manufacturingransomnova reclama a Phi · Not Foundransomnova reclama a Digipro · Technologyransomnova reclama a Integrated Marketing Services · Business Servicesransomkrybit reclama a eitzchaim.com · IL · Not Foundransomkrybit reclama a formasuniversales.com · MX · Business Servicesransomkrybit reclama a rehabmalaysia.com · MY · Healthcareransomkrybit reclama a www.lagus.cz · CZ · Business Servicesransomgunra reclama a Dissinger and Dissinger Law Firm · US · Business Servicesransomplay reclama a Boston Electric and Telephone · US · Telecommunicationransomplay reclama a Wring Group · GB · Not Foundransomincransom reclama a asa-international.com · GB · Business Servicesransomplay reclama a AG Scholtes · NL · Manufacturingransomplay reclama a Andorra Life · AD · Healthcare
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CVE Watch—

CVE-2021-42321

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS

—

Sin CVSS

EPSS

90.4%

p100

KEV

SÍ

17 nov 2021

Exploit Today

80

0-100

Publicado: — · Última mod.: —

EPSS · 30d
90.4%EPSS · 30 días90.4%
2026-06-302026-07-16
Ficha del catálogo KEV

Producto

Microsoft / Exchange

Vulnerabilidad

Microsoft Exchange Server Remote Code Execution Vulnerability

Añadido a KEV

17 nov 2021

Remediar antes de

1 dic 2021

Uso conocido en ransomware

Sí

Descripción resumida

An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.

Acción requerida

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2021-42321

CVEs relacionados

Sin CVEs relacionados por CWE o producto.