CVE-2021-20022—SonicWall Email Security Unrestricted Upload of File Vulnerability

PUBLISHEDvulnerability record
2021-11-03 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2021-20022
Project:
SonicWall
Product:
SonicWall Email Security
Date Added:
2021-11-03
Due Date:
2021-11-17
Last Updated:
June 21, 2025

Vulnerability Name

SonicWall Email Security Unrestricted Upload of File Vulnerability

Description

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.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
KNOWN

Action

Apply updates per vendor instructions.

Additional Notes

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

Related Weaknesses

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