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Medium WID-SEC-2026-0523 3 CVEs

Cisco Nexus: Mehrere Schwachstellen ermöglichen Denial of Service

Published Feb 25, 2026 · Updated Feb 25, 2026 · de-DE

Vendor: Cisco Product: Nexus

Summary

Ein Angreifer kann mehrere Schwachstellen in Cisco Nexus ausnutzen, um einen Denial of Service Angriff durchzuführen.

Product

Bei der Cisco Nexus Serie handelt es sich um modulare Switching-Systeme der Data Center-Klasse.

Vulnerabilities 3

  • High 7.7
    CVE-2026-20048

    Cisco NX-OS Software SNMP Denial of Service Vulnerability

    A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerabil…

    Cisco Cisco NX-OS System Software in ACI Mode Network devices
  • High 7.4
    CVE-2026-20033

    Cisco NX-OS Software Denial of Service Vulnerability

    A vulnerability in Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation when processing s…

    Cisco Cisco NX-OS System Software in ACI Mode Network devices
  • High 7.4
    CVE-2026-20051

    Cisco Nexus 3600-R and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability

    A vulnerability with the Ethernet VPN (EVPN) Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches and Cisco Nexus 9500-R Series Switching Platforms could allow an unauthenticated, adjacent attacker to trigger a Layer 2 traffic loop. This vu…

    Cisco Cisco NX-OS Software Network devices

Revision history

  1. #1

    Initiale Fassung

References