CVE-2021-20023
CVSS v3
4.9
MEDIUM
EPSS Score
48.6 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
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.
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2021-11-17
- Ransomware Use
- Known
Technical details
- Published
- 2021-04-20
Frequently asked questions
What is CVE-2021-20023?
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.
Is CVE-2021-20023 actively exploited?
Yes. CVE-2021-20023 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2021-11-17.
What is the CVSS score for CVE-2021-20023?
CVE-2021-20023 has a CVSS v3 base score of 4.9 (MEDIUM severity).
Is CVE-2021-20023 affecting your environment?
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