CVE-2021-20023CISA KEVEPSS p98.8%
CVE-2021-20023SonicWall Email Security Path Traversal Vulnerability
SonicWall / SonicWall Email Security
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.
Scoring
| EPSS | 51.41% probability of exploitation · percentile 98.8% · 2026-06-18T12:00:27Z |
CISA KEV entry
Added to KEV: 2021-11-03
(incoming)1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| KEVEntry | SonicWall Email Security Path Traversal Vulnerabilitykev-cve-2021-20023 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.