CVE•Published 2021-04-09•Modified 2026-10-01•1 article on news•5 live references•NVD data
CVE-2021-20022Sonicwall · Email_security
Vulnerability data via NVD (ingested)
CVSS v3.1
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
97
Exploit Prediction Scoring System · top 3% of all CVEs
Weaknesses (CWE)
Description
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.
Timeline
Published 2021-04-09
Modified 2026-10-01
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2021-20022Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Sonicwall Email Security"All exposed Sonicwall Email Security instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Email Security"HTTP body or banner mentions "Email Security" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-20022Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-20022Censys host search filtered to this CVE id.
grep.app
CVE-2021-20022Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-20022GitHub code search for direct mentions.
Google dork
"CVE-2021-20022" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (4)
CVE-2021-200224 repos
Ostorlab/KEVunknown
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
Infrasity-Labs/awesome-tech-newsletterPython
A curated, community-driven list of the best tech, software engineering, and developer marketing newsletters. Stay up-to-date with top-tier insights across AI, DevOps, Frontend, an…
mferretti/SeedStreamJava
High-performance test data generator for enterprise applications. Generates realistic, reproducible test data to Kafka, and files using YAML configuration.
gilmry/manifestunknown