CVE-2021-20021

critical-risk
Published 2021-04-09

A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.

Do I need to act?

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91.7% chance of exploitation in next 30 days
EPSS score — higher than 8% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (11)

Affected Vendors

Sonicwall

References (3)

Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
75
/ 100
critical-risk
Severity 32/34 · Critical
Exploitability 27/34 · High
Exposure 16/34 · Moderate