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CVE-2025-6196

Estado: AnalizadaMedia (5.5)—

A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.

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)

Gnome — Libgepub

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-6196",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6196",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-17T14:45:00.900554Z"
        }
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    ],
    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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  "affected": [
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      "source": "secalert@redhat.com",
      "affectedData": [
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          "versions": [
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              "version": "0",
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          ],
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          "defaultStatus": "unaffected"
        },
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          "cpes": [
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          "product": "Red Hat Enterprise Linux 7",
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  "published": "2025-06-17T15:15:54.140",
  "references": [
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      "url": "https://access.redhat.com/security/cve/CVE-2025-6196",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
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      "source": "secalert@redhat.com"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373117",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
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      "source": "secalert@redhat.com"
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      "url": "https://gitlab.gnome.org/GNOME/libgepub/-/issues/18",
      "tags": [
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        "Issue Tracking",
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      "source": "secalert@redhat.com"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en libgepub, una librería para leer archivos EPUB. El software gestiona incorrectamente los cálculos del tamaño de archivo al abrir archivos EPUB especialmente manipulados, lo que provoca asignaciones de memoria incorrectas. Este problema provoca el bloqueo de la aplicación. Entre los usos afectados se incluyen servicios de escritorio como Tumbler, que pueden procesar archivos maliciosos automáticamente al navegar por directorios. Si bien no se han confirmado vectores de ataque remoto directo, cualquier aplicación que utilice libgepub para analizar contenido EPUB proporcionado por el usuario podría ser vulnerable a una denegación de servicio."
    }
  ],
  "lastModified": "2026-06-17T10:01:21.927",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:gnome:libgepub:-:*:*:*:*:*:*:*",
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          "operator": "OR"
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  "sourceIdentifier": "secalert@redhat.com"
}