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CVSS 10.0CVSS 10.0 · CRITICAL

CVE-2026-20357Missing authentication in Cisco Crosswork

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20357 are related to missing authentication for critical function issues that are grouped under the Common Weakness Enumeration (CWE) CWE-306.

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Analysis

Cisco Crosswork permite a atacantes remotos ejecutar funciones criticas sin autenticacion, lo que resulta en un compromiso total de la plataforma de automatizacion de red. Al carecer de validacion de identidad para operaciones sensibles, cualquier usuario con acceso a la red podria realizar tareas administrativas sin credenciales.

Relevant roles

CyberSecurityCloudBackendLinux

Severity

Score: 10.0(CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: CHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-306

EPSS

No EPSS score yet (CVE may be too fresh).

Technical description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20357 are related to missing authentication for critical function issues that are grouped under the Common Weakness Enumeration (CWE) CWE-306.

Published: 8/19/2026, 5:18:40 PM
Last modified: 8/19/2026, 7:17:13 PM

References

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