CVE Watch1 de out. de 2026

CVE-2021-20022

SonicWall Email Security Unrestricted Upload of File Vulnerability

CVSS

7.2

Alta

EPSS

16.6%

p97

KEV

SIM

3 de nov. de 2021

Exploit Today

0-100

Publicado: 9 de abr. de 2021 · Última mod.: 1 de out. de 2026 · CWE-434

EPSS · 30d

16.6%EPSS · 30 dias16.6%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

SonicWall / SonicWall Email Security

Vulnerabilidade

SonicWall Email Security Unrestricted Upload of File Vulnerability

Adicionado ao KEV

3 de nov. de 2021

Corrigir até

17 de nov. de 2021

Uso conhecido em ransomware

Sim

Descrição resumida

SonicWall Email Security contains an unrestricted upload of file with dangerous type vulnerability that allows a post-authenticated attacker to upload a file to the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20023 to achieve privilege escalation.

Ação necessária

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2021-20022

Descrição técnica

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

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