CVE-2026-54117

Estado: En análisisCrítica (9.8)—

Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.53%
Percentil entre todas las CVEs puntuadas: 74
Fecha de la puntuación: 5/10/2026

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 access95 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %

Vector CVSS AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-502 (deserialization) + descripción explícita 'execute code' = ejecución de código arbitrario (T1059).

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 Management Vulnerability Scanning Restrict Web-Based Content Network Segmentation Limit Software Installation Limit Access to Resource Over Network

Tecnologías afectadas (5)

Microsoft — SQL Server 2016 Microsoft — SQL Server 2017 Microsoft — SQL Server 2019 Microsoft — SQL Server 2022 Microsoft — SQL Server 2025

CWE

CWE-502

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54117

JSON original (NVD)

Mostrar

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