CVE-2026-92034

Estado: Pendiente de análisisCrítica (9.1)—

Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Puntuación base: 9.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.29%
Percentil entre todas las CVEs puntuadas: 20
Fecha de la puntuación: 3/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1565.001 Stored Data Manipulationimpact75 %
Impacto secundarioT1499.004 Application or System Exploitationimpact70 %

AV:N/AC:L/PR:N/UI:N indica exposición en red sin autenticación (T1190). CWE-346 (site isolation) permite manipulación entre sitios e inanición de recursos en graphics.

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

Filter Network Traffic Vulnerability Scanning Restrict File and Directory Permissions Privileged Account Management Remote Data Storage Network Segmentation

Tecnologías afectadas (1)

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

Mozilla — Firefox^AI

CWE

CWE-346

Referencias

JSON original (NVD)

Mostrar

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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "role": "CISA Coordinator",
          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-09-21T17:04:54.752406Z"
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    "cvssMetricV31": [
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 5.2,
        "exploitabilityScore": 3.9
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  "published": "2026-09-15T13:16:54.737",
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2060295",
      "source": "security@mozilla.org"
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    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-90/",
      "source": "security@mozilla.org"
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      "url": "https://www.mozilla.org/security/advisories/mfsa2026-94/",
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  "lastModified": "2026-09-21T17:19:16.660",
  "sourceIdentifier": "security@mozilla.org"
}