CVE Watch12 ago 2026

CVE-2021-20023

SonicWall Email Security Path Traversal Vulnerability

CVSS

4.9

Medio

EPSS

51.4%

p99

KEV

SÍ

3 nov 2021

Exploit Today

0-100

Publicado: 20 abr 2021 · Última mod.: 12 ago 2026 · CWE-22

EPSS · 30d

50.2%EPSS · 30 días51.4%

2026-08-022026-08-30

Ficha del catálogo KEV

Producto

SonicWall / SonicWall Email Security

Vulnerabilidad

SonicWall Email Security Path Traversal Vulnerability

Añadido a KEV

3 nov 2021

Remediar antes de

17 nov 2021

Uso conocido en ransomware

Sí

Descripción resumida

SonicWall Email Security contains a path traversal vulnerability that allows a post-authenticated attacker to read files on the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20022 to achieve privilege escalation.

Acción requerida

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2021-20023

Descripción técnica

SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.

Referencias oficiales

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