CVE-2018-8353

Estado: ModificadaAlta (7.5)—💥 Exploit

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8373, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.

CVSS

Versión: 3.0
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 68%
Percentil entre todas las CVEs puntuadas: 99
Fecha de la puntuación: 7/10/2026

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Publicado en Exploit-DB · Microsoft Windows - JScript RegExp.lastIndex Use-After-Free (28/8/2018)
Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

🎯 Técnicas ATT&CK

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

ExplotaciónT1204.002 Malicious Fileexecution
ExplotaciónT1566 Phishinginitial access
Impacto principalT1499.004 Application or System Exploitationimpact
Impacto principalT1574 Hijack Execution Flowstealth · execution
Impacto secundarioT1005 Data from Local Systemcollection
Impacto secundarioT1136 Create Accountpersistence
Impacto secundarioT1485 Data Destructionimpact
Impacto secundarioT1565 Data Manipulationimpact

Fuente: mapeo oficial MITRE CTID (CVE → ATT&CK).

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User Training User Account Management Restrict File and Directory Permissions Network Segmentation Multi-factor Authentication Execution Prevention

Tecnologías afectadas (1)

Microsoft — Internet Explorer

CWE

CWE-416

Referencias

JSON original (NVD)

Mostrar

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