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CVE-2025-7425

Estado: AplazadaAlta (7.8)—

A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption.

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.

Acceso local (AV:L) sin UI:R → T1068. CWE-416 (use-after-free) causa corrupción de memoria con potencial DoS (crashes) o ejecución; se prioriza DoS por certeza textual (heap corruption, crashes).

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

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

CWE

Referencias

JSON original (NVD)

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      "url": "https://access.redhat.com/errata/RHSA-2026:11503",
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    {
      "url": "https://access.redhat.com/security/cve/CVE-2025-7425",
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2379274",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://gitlab.gnome.org/GNOME/libxslt/-/issues/140",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2025/Aug/0",
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      "url": "http://seclists.org/fulldisclosure/2025/Jul/30",
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    {
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      "url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00035.html",
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    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-577017.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    },
    {
      "url": "https://gitlab.gnome.org/GNOME/libxslt/-/issues/140",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en libxslt donde los atributos type, atype y flags se modifican de forma que corrompe la gestión de memoria interna. Cuando las funciones XSLT, como el proceso key(), generan fragmentos de árbol, esta corrupción impide la limpieza correcta de los atributos ID. Como resultado, el sistema puede acceder a la memoria liberada, provocando fallos o permitiendo a los atacantes provocar la corrupción del montón."
    }
  ],
  "lastModified": "2026-09-21T17:17:32.063",
  "sourceIdentifier": "secalert@redhat.com"
}