CVE•Published 2021-02-04•Modified 2026-08-12•1 article on news•5 live references•NVD data
CVE-2021-20016Sonicwall · Sma_100_firmware
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
98
Exploit Prediction Scoring System · top 2% of all CVEs
Weaknesses (CWE)
Description
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.
Timeline
Published 2021-02-04
Modified 2026-08-12
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-2021-20016Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Sma 100 Firmware"Hosts Shodan identified as running Sma 100 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2021-20016Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-20016Censys host search filtered to this CVE id.
grep.app
CVE-2021-20016Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-20016GitHub code search for direct mentions.
Google dork
"CVE-2021-20016" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (6)
CVE-2021-200166 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.
Garytop/nova-fPython
No-cost On-site Vulnerability Analyzer - Fast | 零成本本地级高速漏洞分析系统 | 2025DataCon漏洞攻击流量识别赛道全国第四
Vulnetix/breach-notesGo
Breach intelligence notes: structured YAML records of breach reports, advisories, and cyber incidents
cat-project-hat/cat-botnetGo
1337or420/SonicWall-SMA-Security-ScannerGo
SonicWall SMA Security Scanner - это многопоточный сканер уязвимостей для устройств SonicWall Secure Mobile Access (SMA). Инструмент способен обнаруживать и эксплуатировать различн…
Ayeesha02/Network-Vulnerability-ScannerPython
Python CLI for host discovery, port scanning, service fingerprinting & CVE triage. Zero mandatory dependencies. For authorised penetration testing only.