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

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

September 3, 2026 dirk 0 Comments 3 tags

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

Source: The Hacker News

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