GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2021-20016 (GCVE-0-2021-20016)

Vulnerability from cvelistv5 – Published: 2021-02-03 20:35 – Updated: 2026-08-12 03:55
VLAI CISA Previdian
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2021-02-05 00:00 UTC
CWE
  • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
SonicWall SonicWall SMA100 Affected: SMA100 build version 10.x
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e3773bc3-7af1-4ceb-a99c-472dd5f7d2d8

Vulnerability ID: CVE-2021-20016

Status: Confirmed

Status Updated: 2021-11-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: KEV entry: SonicWall SSLVPN SMA100 SQL Injection Vulnerability | Affected: SonicWall / SSLVPN SMA100 | Description: SonicWall SSLVPN SMA100 contains a SQL injection vulnerability that allows remote exploitation for credential access by an unauthenticated attacker. | Required action: Apply updates per vendor instructions. | Due date: 2021-11-17 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-20016
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-89
Feed CISA Known Exploited Vulnerabilities Catalog
Product SSLVPN SMA100
Due Date 2021-11-17
Date Added 2021-11-03
Vendorproject SonicWall
Vulnerabilityname SonicWall SSLVPN SMA100 SQL Injection Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 12:29 UTC | Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: dd189943-0eed-47f0-bc47-8d380d77f6cd

Vulnerability ID: CVE-2021-20016

Status: Confirmed

Status Updated: 2021-11-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: KEVIntel entry: A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access... | Affected: SonicWall / SonicWall SMA100 | CVSS: 9.8 (CRITICAL) | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access...
Vendor SonicWall
Product SonicWall SMA100
Added Date 2021-11-03T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:04 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:30:07.417Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-20016",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2021-02-05T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-12T03:55:38.334Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2021-11-03T00:00:00.000Z",
            "value": "CVE-2021-20016 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SonicWall SMA100",
          "vendor": "SonicWall",
          "versions": [
            {
              "status": "affected",
              "version": "SMA100 build version 10.x"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-89",
              "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-03T20:35:14.000Z",
        "orgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
        "shortName": "sonicwall"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "PSIRT@sonicwall.com",
          "ID": "CVE-2021-20016",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SonicWall SMA100",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "SMA100 build version 10.x"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "SonicWall"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001",
              "refsource": "CONFIRM",
              "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "44b2ff79-1416-4492-88bb-ed0da00c7315",
    "assignerShortName": "sonicwall",
    "cveId": "CVE-2021-20016",
    "datePublished": "2021-02-03T20:35:14.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2026-08-12T03:55:38.334Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2021-20016",
      "cwes": "[\"CWE-89\"]",
      "dateAdded": "2021-11-03",
      "dueDate": "2021-11-17",
      "forensicTriage": "No",
      "knownRansomwareCampaignUse": "Known",
      "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-20016",
      "product": "SSLVPN SMA100",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "SonicWall SSLVPN SMA100 contains a SQL injection vulnerability that allows remote exploitation for credential access by an unauthenticated attacker.",
      "vendorProject": "SonicWall",
      "vulnerabilityName": "SonicWall SSLVPN SMA100 SQL Injection Vulnerability"
    },
    "epss": {
      "cve": "CVE-2021-20016",
      "date": "2026-09-17",
      "epss": "0.40038",
      "percentile": "0.98559"
    },
    "fkie_nvd": {
      "cisaActionDue": "2021-11-17",
      "cisaExploitAdd": "2021-11-03",
      "cisaRequiredAction": "Apply updates per vendor instructions.",
      "cisaVulnerabilityName": "SonicWall SSLVPN SMA100 SQL Injection Vulnerability",
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:sonicwall:sma_100_firmware:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"10.0.0.0\", \"versionEndExcluding\": \"10.2.0.5-d-29sv\", \"matchCriteriaId\": \"5ED4CBFD-C82D-4CA3-8A15-4A461A432A81\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:sonicwall:sma_100:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"7B164EB6-4CA0-46EF-986D-270968E87C5C\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:sonicwall:sma_200_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9B74D223-A74B-42EE-A005-C07CC2A1F92C\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0B190266-AD6F-401B-9B2E-061CDD539236\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:sonicwall:sma_210_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"69495233-D283-414C-A32C-9FBAF726CF1E\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"51587338-4A5F-41FC-9497-743F061947C2\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:sonicwall:sma_400_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E791012D-4096-4978-950A-5B482F714A47\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9D728332-10C9-4508-B720-569D44E99543\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:sonicwall:sma_410_firmware:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"852AF172-A8E4-463B-8503-F31DD0E62BC7\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9DFB8FBC-FFA4-4526-B306-D5692A43DC9E\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:sonicwall:sma_500v:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"75DB297F-6686-46CD-83D4-608013568D81\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"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.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad de inyecci\\u00f3n de SQL en el producto SonicWall SSLVPN SMA100, permite a un atacante remoto no autenticado llevar a cabo una consulta SQL para acceder a la contrase\\u00f1a del nombre de usuario y otra informaci\\u00f3n relacionada con la sesi\\u00f3n.\u0026#xa0;Esta vulnerabilidad afecta a la versi\\u00f3n 10.x de la compilaci\\u00f3n SMA100\"}]",
      "id": "CVE-2021-20016",
      "lastModified": "2024-11-21T05:45:47.220",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 7.5, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-02-04T06:15:13.817",
      "references": "[{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"source\": \"PSIRT@sonicwall.com\", \"tags\": [\"Mitigation\", \"Vendor Advisory\"]}, {\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mitigation\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "PSIRT@sonicwall.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"PSIRT@sonicwall.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-89\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-89\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-20016\",\"sourceIdentifier\":\"PSIRT@sonicwall.com\",\"published\":\"2021-02-04T06:15:13.817\",\"lastModified\":\"2026-08-12T05:17:33.173\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de inyecci\u00f3n de SQL en el producto SonicWall SSLVPN SMA100, permite a un atacante remoto no autenticado llevar a cabo una consulta SQL para acceder a la contrase\u00f1a del nombre de usuario y otra informaci\u00f3n relacionada con la sesi\u00f3n.\u0026#xa0;Esta vulnerabilidad afecta a la versi\u00f3n 10.x de la compilaci\u00f3n SMA100\"}],\"affected\":[{\"source\":\"PSIRT@sonicwall.com\",\"affectedData\":[{\"vendor\":\"SonicWall\",\"product\":\"SonicWall SMA100\",\"versions\":[{\"version\":\"SMA100 build version 10.x\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2021-02-05T00:00:00+00:00\",\"id\":\"CVE-2021-20016\",\"options\":[{\"exploitation\":\"active\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"cisaExploitAdd\":\"2021-11-03\",\"cisaActionDue\":\"2021-11-17\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"SonicWall SSLVPN SMA100 SQL Injection Vulnerability\",\"weaknesses\":[{\"source\":\"PSIRT@sonicwall.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-89\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-89\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sonicwall:sma_100_firmware:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.0.0.0\",\"versionEndExcluding\":\"10.2.0.5-d-29sv\",\"matchCriteriaId\":\"5ED4CBFD-C82D-4CA3-8A15-4A461A432A81\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sonicwall:sma_100:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7B164EB6-4CA0-46EF-986D-270968E87C5C\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sonicwall:sma_200_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B74D223-A74B-42EE-A005-C07CC2A1F92C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B190266-AD6F-401B-9B2E-061CDD539236\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sonicwall:sma_210_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"69495233-D283-414C-A32C-9FBAF726CF1E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"51587338-4A5F-41FC-9497-743F061947C2\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sonicwall:sma_400_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E791012D-4096-4978-950A-5B482F714A47\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9D728332-10C9-4508-B720-569D44E99543\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sonicwall:sma_410_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"852AF172-A8E4-463B-8503-F31DD0E62BC7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9DFB8FBC-FFA4-4526-B306-D5692A43DC9E\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:sonicwall:sma_500v:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"75DB297F-6686-46CD-83D4-608013568D81\"}]}]}],\"references\":[{\"url\":\"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\",\"source\":\"PSIRT@sonicwall.com\",\"tags\":[\"Mitigation\",\"Vendor Advisory\"]},{\"url\":\"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mitigation\",\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-03-27T15:04:16+00:00",
      "cve": "CVE-2021-20016",
      "id": "CVE-2021-20016",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-20016",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-20016.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T17:30:07.417Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-20016\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-06T19:54:21.435978Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00.000Z\", \"value\": \"CVE-2021-20016 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-06T19:53:56.705Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"SonicWall\", \"product\": \"SonicWall SMA100\", \"versions\": [{\"status\": \"affected\", \"version\": \"SMA100 build version 10.x\"}]}], \"references\": [{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-89\", \"description\": \"CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"44b2ff79-1416-4492-88bb-ed0da00c7315\", \"shortName\": \"sonicwall\", \"dateUpdated\": \"2021-02-03T20:35:14.000Z\"}, \"x_legacyV4Record\": {\"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"SMA100 build version 10.x\"}]}, \"product_name\": \"SonicWall SMA100\"}]}, \"vendor_name\": \"SonicWall\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"name\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"refsource\": \"CONFIRM\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"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.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-20016\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"PSIRT@sonicwall.com\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-20016\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-12T03:55:38.334Z\", \"dateReserved\": \"2020-12-17T00:00:00.000Z\", \"assignerOrgId\": \"44b2ff79-1416-4492-88bb-ed0da00c7315\", \"datePublished\": \"2021-02-03T20:35:14.000Z\", \"assignerShortName\": \"sonicwall\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.