CVE-2026-28309

Estado: AnalizadaCrítica (9.1)—

SolarWinds Serv-U is affected by a broken access control vulnerability that allows a domain administrator to create system administrator accounts. The impact is lower in Windows deployments.

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.50%
Percentil entre todas las CVEs puntuadas: 40
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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access90 %
Impacto secundarioT1098.002 Additional Email Delegate Permissionspersistence · privilege escalation75 %

AV:N + PR:H (admin de dominio) → T1210 (explotación de servicio remoto con privilegios). Impacto: crear cuentas admin del sistema (T1078 acceso con credenciales de administrador; T1098.002 manipulación de cuentas).

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 Multi-factor Authentication Disable or Remove Feature or Program Application Developer Guidance Active Directory Configuration Vulnerability Scanning

Tecnologías afectadas (1)

Solarwinds — Serv-u

CWE

CWE-862

Referencias

JSON original (NVD)

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