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SonicWall Email Security Path Traversal Vulnerability

Medium CVSS 4.9 Listed in CISA KEV
CVECVE-2021-20023
First seen2021-11-03 00:00 UTC
Disclosed2021-04-20 12:15 UTC
Last updated2026-09-04 08:30 UTC
Channel statuspending_review

Summary

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.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • SonicWall:SonicWall Email Security
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Sources

  • CISA KEV DATABASE
  • NVD DATABASE

Original Links

Timeline

  1. kev_added CISA KEV
  2. kev_ingest CISA KEV
  3. nvd_ingest NVD