Critical Cisco Nexus 9000 Flaw Lets Unauthenticated Remote Attackers Run Code as Root

Cisco has released patches to address a critical security flaw affecting 10 Silicon One-based Nexus 9000 switches that could allow an unauthenticated, remote attacker to execute code as root, alongside an IOS XR hardening release bundling 7 umbrella CVEs, 2 of which are rated 9.8, with no workaround for any IOS XR version.

The Nexus vulnerability, tracked as CVE-2026-20212 (CVSS score: 9.8), is

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https://thehackernews.com/2026/09/critical-cisco-nexus-9000-flaw-lets.html

id: 2881
uid: RL7d6
insdate: 2026-09-03 17:10:05
title: Critical Cisco Nexus 9000 Flaw Lets Unauthenticated Remote Attackers Run Code as Root
additional: Cisco has released patches to address a critical security flaw affecting 10 Silicon One-based Nexus 9000 switches that could allow an unauthenticated, remote attacker to execute code as root, alongside an IOS XR hardening release bundling 7 umbrella CVEs, 2 of which are rated 9.8, with no workaround for any IOS XR version.

The Nexus vulnerability, tracked as CVE-2026-20212 (CVSS score: 9.8), is
category: Cybersecurity
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guid: https://thehackernews.com/2026/09/critical-cisco-nexus-9000-flaw-lets.html
source_url: https://thehackernews.com/2026/09/critical-cisco-nexus-9000-flaw-lets.html
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