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CVE-2021-21874

Estado: ModificadaCrítica (9.1)—

A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability.

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)

Lantronix — Premierwave 2050 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21874",
  "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,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
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    "cvssMetricV31": [
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  "affected": [
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      "affectedData": [
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  "published": "2021-12-22T19:15:08.760",
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      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
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      "description": [
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una petición HTTP especialmente diseñada puede conllevar a una ejecución de un comando arbitrario en el parámetro DSA keypasswd. Un atacante puede realizar una petición HTTP autenticada para desencadenar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T03:36:16.603",
  "configurations": [
    {
      "nodes": [
        {
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  "sourceIdentifier": "talos-cna@cisco.com"
}