CVE-2021-20022CISA KEVEPSS p96.6%
CVE-2021-20022SonicWall Email Security Unrestricted Upload of File Vulnerability
SonicWall / SonicWall Email Security
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.
Scoring
| EPSS | 16.51% probability of exploitation · percentile 96.6% · 2026-06-19T12:03:05Z |
CISA KEV entry
Added to KEV: 2021-11-03
(incoming)1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| KEVEntry | SonicWall Email Security Unrestricted Upload of File Vulnerabilitykev-cve-2021-20022 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.