CVE-2025-33056
Estado: AnalizadaAlta (7.5)—
Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an unauthorized attacker to deny service over a network.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.65%
- Percentil entre todas las CVEs puntuadas: 76
- Fecha de la puntuación: 6/10/2026
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.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1499.004Application or System Exploitationimpact80 %
Vector AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-284 (improper access control) y descripción de DoS en lsasrv (servidor de autoridad de seguridad local) conducen a T1499.004 (ataque de aplicación).
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
Tecnologías afectadas (15)
Microsoft — Windows 10 1507Microsoft — Windows 10 1607Microsoft — Windows 10 1809Microsoft — Windows 10 21h2Microsoft — Windows 10 22h2Microsoft — Windows 11 22h2Microsoft — Windows 11 23h2Microsoft — Windows 11 24h2Microsoft — Windows Server 2008Microsoft — Windows Server 2012Microsoft — Windows Server 2016Microsoft — Windows Server 2019Microsoft — Windows Server 2022Microsoft — Windows Server 2022 23h2Microsoft — Windows Server 2025
CWE
- CWE-284
Referencias
JSON original (NVD)
Mostrar
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"published": "2025-06-10T17:22:23.163",
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"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-33056",
"tags": [
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"value": "Un control de acceso inadecuado en el servidor de autoridad de seguridad local de Microsoft (lsasrv) permite que un atacante no autorizado deniegue el servicio a través de una red."
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