CVE-2026-20274criticalCWE-664

CVE-2026-20274: fallo crítico en Cisco IOS XR Software

Cisco IOS XR Software Security Hardening Release: September 2026

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear Cisco IOS XR

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

28Vexday Risk Score

Sin señal de explotación. Ella tiene alerta oficial del gobierno de Brasil.

ssvc Trackcvss 9.8epss 0.5%
Alerta oficial en Brasil

El gobierno federal de Brasil publicó una alerta, recomendación o boletín que cita esta vulnerabilidad.

Fuente: CTIR Gov (GSI) y CISC Gov.br, bajo licencia CC BY-ND 3.0.
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20274 are related to improper resource control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-664.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Cisco · Cisco IOS XR Software
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