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CVE-2026-27442

Estado: AnalizadaCrítica (9.3)—

The GINA web interface in SEPPmail Secure Email Gateway before version 15.0.1 does not properly check attachment filenames in GINA-encrypted emails, allowing an attacker to access files on the gateway.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/PR:L permite explotar servicio remoto con privilegios. CWE-22 (path traversal) en validación de nombres de archivo permite leer archivos del sistema y potencialmente modificarlos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Seppmail — Seppmail

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-27442",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-27442",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-04T19:07:50.991680Z"
        }
      }
    ],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
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        "cvssData": {
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          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
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          "modifiedAttackVector": "NOT_DEFINED",
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          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
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  "affected": [
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      "affectedData": [
        {
          "vendor": "SEPPmail",
          "product": "Secure Email Gateway",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "15.0.1",
              "versionType": "custom"
            }
          ],
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  ],
  "published": "2026-03-04T09:15:56.120",
  "references": [
    {
      "url": "https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vulnerability@ncsc.ch"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vulnerability@ncsc.ch",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
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  ],
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    {
      "lang": "en",
      "value": "The GINA web interface in SEPPmail Secure Email Gateway before version 15.0.1 does not properly check attachment filenames in GINA-encrypted emails, allowing an attacker to access files on the gateway."
    },
    {
      "lang": "es",
      "value": "La interfaz web GINA en SEPPmail Secure Email Gateway anterior a la versión 15.0.1 no verifica correctamente los nombres de archivo adjuntos en correos electrónicos cifrados con GINA, lo que permite a un atacante acceder a archivos en el gateway."
    }
  ],
  "lastModified": "2026-06-17T10:27:09.823",
  "configurations": [
    {
      "nodes": [
        {
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              "versionEndExcluding": "15.0.1"
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}