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CVE-2021-20026

Estado: ModificadaAlta (8.8)—

A vulnerability in the SonicWall NSM On-Prem product allows an authenticated attacker to perform OS command injection using a crafted HTTP request. This vulnerability affects NSM On-Prem 2.2.0-R10 and earlier versions.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Sonicwall — Network Security Manager

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-20026",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "SonicWall",
          "product": "SonicWall NSM On-Prem",
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  "published": "2021-05-27T19:15:08.283",
  "references": [
    {
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014",
      "tags": [
        "Vendor Advisory"
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      "source": "PSIRT@sonicwall.com"
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    {
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-78"
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  "descriptions": [
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      "lang": "en",
      "value": "A vulnerability in the SonicWall NSM On-Prem product allows an authenticated attacker to perform OS command injection using a crafted HTTP request. This vulnerability affects NSM On-Prem 2.2.0-R10 and earlier versions."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el producto SonicWall NSM On-Prem, permite a un atacante autenticado llevar a cabo una inyección de comandos del Sistema Operativo usando una petición HTTP diseñada. Esta vulnerabilidad afecta a NSM On-Prem versiones 2.2.0-R10 y anteriores"
    }
  ],
  "lastModified": "2026-06-17T03:33:10.157",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "2.2.0"
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  "sourceIdentifier": "PSIRT@sonicwall.com"
}