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CVE Watch10 ago 2026

CVE-2021-31196

Microsoft Exchange Server Information Disclosure Vulnerability

CVSS

7.2

Alto

EPSS

54.1%

p99

KEV

21 ago 2024

Exploit Today

80

0-100

Publicado: 14 jul 2021 · Última mod.: 10 ago 2026

EPSS · 30d
46.4%EPSS · 30 días54.1%
2026-08-022026-08-31
Ficha del catálogo KEV

Producto

Microsoft / Exchange Server

Vulnerabilidad

Microsoft Exchange Server Information Disclosure Vulnerability

Añadido a KEV

21 ago 2024

Remediar antes de

11 sept 2024

Uso conocido en ransomware

No

Descripción resumida

Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.

Acción requerida

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notas

https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-31196; https://nvd.nist.gov/vuln/detail/CVE-2021-31196

Descripción técnica

Microsoft Exchange Server Remote Code Execution Vulnerability

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