CVE-2021-20016 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-20016CRITICAL

SonicWall SSLVPN SMA100

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .3695   98.4   YES

AFFECTED
  Product           Versions                     Fixed
  SonicWall SMA100  SMA100 build version 10.x –  —

TIMELINE
  Dec 17  Reserved by sonicwall
  Nov 3   Added to CISA KEV, remediation due 2021-11-17
  Nov 3   Published (CNA: sonicwall)

CWE-89 · CNA: sonicwall · CVSS v3.1 · 2 references · NVD status: Analyzed · KEV due November 17, 2021

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 17, 2020	Reserved	Reserved by sonicwall
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2021-11-17
November 3, 2021	Published	Published (CNA: sonicwall)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
SonicWall	SonicWall SMA100	—	SMA100 build version 10.x	—

Weaknesses

CWE-89

References (2)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001 [Mitigation, Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016 [US Government Resource]

Authoritative record: CVE-2021-20016 at cve.org

Vendors: sonicwall

Weaknesses: CWE-89

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-20016 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.