CVE-2026-45490

Estado: ModificadaAlta (7.8)—

Improper authorization in .NET allows an authorized attacker to elevate privileges locally.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.42%
Percentil entre todas las CVEs puntuadas: 35
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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation95 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access90 %
Impacto secundarioT1098 Account Manipulationpersistence · privilege escalation75 %

AV:L (acceso local) sin UI:R indica T1068. PR:L (usuario autorizado) con C:H/I:H/A:H permite escalada de privilegios, resultando en obtención de permisos elevados (T1078) y potencial manipulación de cuentas (T1098).

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

User Account Management Privileged Account Management Multi-factor Authentication Application Developer Guidance Active Directory Configuration User Training

Tecnologías afectadas (1)

Microsoft — .net

CWE

CWE-285
CWE-863
CWE-266

Referencias

JSON original (NVD)

Mostrar

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      "lang": "en",
      "value": "Improper authorization in .NET allows an authorized attacker to elevate privileges locally."
    },
    {
      "lang": "es",
      "value": "Autorización impropia en .NET permite a un atacante autorizado elevar privilegios localmente."
    }
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