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CVE-2026-1858

Estado: AnalizadaMedia (4.8)—

wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.

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)

CWE

Referencias

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  "id": "CVE-2026-1858",
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          "options": [
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              "exploitation": "none"
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          ],
          "version": "2.0.3",
          "timestamp": "2026-04-30T13:16:18.594329Z"
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          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
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        "exploitabilityScore": 2.2
      }
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      "affectedData": [
        {
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  "published": "2026-04-29T21:16:20.513",
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      "description": [
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      "value": "wget2 accepts a server certificate with incorrect Key Usage (KU) or Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication."
    }
  ],
  "lastModified": "2026-06-17T10:16:37.497",
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