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CVE-2025-8044

Estado: ModificadaCrítica (9.8)—

Memory safety bugs present in Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 141 and Thunderbird 141.

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.

Vulnerabilidad de seguridad de memoria (CWE-119) en navegador web Firefox expuesto en red sin autenticación (AV:N/PR:N/UI:N), con potencial de ejecución de código arbitrario remoto. Vector CVSS crítico confirma T1190.

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

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (2)

Mozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-8044",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
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          ],
          "version": "2.0.3",
          "timestamp": "2025-07-24T03:55:34.867600Z"
        }
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    "cvssMetricV31": [
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        "cvssData": {
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "HIGH"
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  "published": "2025-07-22T21:15:51.363",
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      "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1933572%2C1971116",
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        "Broken Link"
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      "source": "security@mozilla.org"
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-56/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@mozilla.org"
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-61/",
      "tags": [
        "Vendor Advisory"
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      "source": "security@mozilla.org"
    }
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  "vulnStatus": "Modified",
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      "description": [
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      "lang": "en",
      "value": "Memory safety bugs present in Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 141 and Thunderbird 141."
    },
    {
      "lang": "es",
      "value": "Errores de seguridad de memoria presentes en Firefox 140 y Thunderbird 140. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con el esfuerzo suficiente, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox 141 y Thunderbird 141."
    }
  ],
  "lastModified": "2026-09-30T18:10:00.190",
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