CVE-2019-15998

Estado: ModificadaMedia (5.3)—

A vulnerability in the access-control logic of the NETCONF over Secure Shell (SSH) of Cisco IOS XR Software may allow connections despite an access control list (ACL) that is configured to deny access to the NETCONF over SSH of an affected device. The vulnerability is due to a missing check in the NETCONF over SSH access control list (ACL). An attacker could exploit this vulnerability by connecting to an affected device using NETCONF over SSH. A successful exploit could allow the attacker to connect to the device on the NETCONF port. Valid credentials are required to access the device. This vulnerability does not affect connections to the default SSH process on the device.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Puntuación base: 5.3

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.73%
Percentil entre todas las CVEs puntuadas: 53
Fecha de la puntuación: 7/10/2026

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.

ExplotaciónT1078 Valid Accountsstealth · persistence · privilege escalation · initial access
Impacto principalT1133 External Remote Servicespersistence · initial access

Fuente: mapeo oficial MITRE CTID (CVE → ATT&CK).

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Multi-factor Authentication Application Developer Guidance Active Directory Configuration User Training User Account Management Restrict Web-Based Content

Tecnologías afectadas (1)

Cisco — IOS XR

CWE

CWE-284
CWE-862

Referencias

JSON original (NVD)

Mostrar

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