CVE-2026-22747

Estado: ModificadaAlta (8.1)—

Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. This issue affects Spring Security: from 7.0.0 through 7.0.4.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 8.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.30%
Percentil entre todas las CVEs puntuadas: 20
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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1078.004 Cloud Accountsstealth · persistence · privilege escalation · initial access80 %
Impacto secundarioT1556.002 Password Filter DLLdefense impairment · persistence · credential access75 %

AV:N/PR:L requiere red sin privilegios (T1210). El certificado X.509 manipulado permite suplantación de identidad (T1078.004); impersonar usuario es modificación de autenticación (T1556.002).

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 Active Directory Configuration Vulnerability Scanning User Training User Account Management Threat Intelligence Program

Tecnologías afectadas (1)

Vmware — Spring Security

CWE

CWE-297
CWE-295

Referencias

JSON original (NVD)

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