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CVE-2026-55130

Estado: AnalizadaAlta (7.8)—

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

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.

Buffer overflow en Word requiere interacción del usuario (UI:R) para abrir archivo malicioso, acceso local (AV:L); impacta ejecución de código (T1059) y potencial escalada de privilegios (I:H, A:H en CVSS).

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

Execution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareThreat Intelligence ProgramRestrict Web-Based Content

Tecnologías afectadas (6)

Microsoft — 365 AppsMicrosoft — Office 2019Microsoft — Office 2021Microsoft — Office 2024Microsoft — Sharepoint ServerMicrosoft — Word

CWE

Referencias

JSON original (NVD)

Mostrar
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  "references": [
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