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CVE-2020-35679

Estado: ModificadaAlta (7.5)—

smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.

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 (2)

Fedoraproject — FedoraOpensmtpd — Opensmtpd

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-35679",
  "cveTags": [],
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "baseSeverity": "HIGH",
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
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  "published": "2020-12-24T16:15:15.537",
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          "lang": "en",
          "value": "CWE-401"
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      "value": "smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a \"very significant\" memory leak via messages to an instance that performs many regex lookups."
    },
    {
      "lang": "es",
      "value": "El archivo smtpd/table.c en OpenSMTPD versiones anteriores a 6.8.0p1, carece de determinado regfree, lo que podría permitir a atacantes activar un filtrado de memoria \"very significant\" por medio de mensajes hacia una instancia que lleva a cabo muchas búsquedas de expresiones regulares"
    }
  ],
  "lastModified": "2026-06-17T03:14:06.980",
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