Unrated

CVE-2021-20023

Type: advisorySource: Official CVE ListKnown exploited1 source record

SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.

Announced 20 Apr 2021Source revision 1

Original source ↗

CVE-2021-20023

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2021-20023

Email Security

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "SonicWall",
    "product": "Email Security",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.9 and earlier"
      }
    ]
  }
]

Related CVEs: CVE-2021-20023
Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2021-20023 · Unrated

SonicWall Email Security · Known exploited (CISA KEV)

Event: #7781 · Revision 1
Added to Heist Feed: Sat, 24 Oct 2026 22:50:03 GMT
Publisher date: Tue, 20 Apr 2021 11:55:13 GMT

Read the original announcement