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CVE-2021-20023

KEV · Ransomware
Updated Oct 1, 2026 · PUBLISHED
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Description

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.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Email SecuritySonicWall / Email Security10.0.9 and earlieraffected