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...

Vulnerabilities found in Cisco Nexus 9000 Series, iOS XR Software, and Secure Email

Cisco has identified vulnerabilities in Cisco Nexus 9000 Series switches with Silicon One technology, Cisco IOS XR software, and Cisco Secure Email. The most serious vulnerability affects Nexus 9000 switches: when TCP ports 43210 or 43211 are accessible, an attacker can execute commands without a...

CVE-2026-20212

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 L3 virtual routing and...

EUVD-2026-70201

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 L3 virtual routing and...

CVE-2026-20212 Cisco Nexus 3000 and 9000 Series Switches Silicon One Hardware Abstraction Layer Remote Code Execution Vulnerability

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 L3 virtual routing and...

Cisco Nexus 9000 Series Switches Silicon One Remote Code Execution Vulnerability

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 L3 virtual routing and...

CVE-2026-20212: Binding to an Unrestricted IP Address

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 L3 virtual routing and...

PT-2026-84805

Name of the Vulnerable Software and Affected Versions Cisco Nexus 9000 Series Switches affected versions not specified Description A flaw in the Silicon One integration for specific Cisco Nexus 9000 Series Switches allows an unauthenticated remote attacker to execute code with root privileges. Th...

Cisco Advance Notification for Publication of September 2, 2026, Security Advisories

On September 2, 2026, the Cisco Product Security Incident Response Team PSIRT published the following advisories: Cisco Security Advisory CVE ID Security Impact Rating CVSS Base Score Cisco IOS XR Software Security Hardening Release: September 2026...

CISCO-SA-20161102-N9KAPIC

creationtimestamp| type| source ---|---|--- 2026-08-22 14:00:17+00:00| seen| https://t.me/informationsec/1437 2026-08-23 00:00:36+00:00| seen| https://t.me/informationsec/1437...

Cisco Nexus 3000 and 9000 Series Switches BGP DoS (cisco-sa-bgp-iefab-3hb2pwtx)

According to its self-reported version, Cisco NX-OS Software is affected by a vulnerability. - A vulnerability in the Border Gateway Protocol BGP enforce-first-as feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an...

The vulnerability of the Border Gateway Protocol (BGP) in the Cisco NX-OS operating system of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches allows a attacker to cause service interruptions.

The vulnerability of the Border Gateway Protocol BGP on Cisco NX-OS operating systems of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches is related to permission processing errors. Exploiting this vulnerability can allow a malicious actor to cause service interruptions...

CVE-2026-20171 Cisco Nexus 3000 and 9000 Series Border Gateway Protocol Denial of Service Vulnerability

A vulnerability in the Border Gateway Protocol BGP enforce-first-as feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to trigger BGP peer flaps, resulting in a denial of service DoS condition...

Cisco Nexus 3000 and 9000 Series Switches Border Gateway Protocol Denial of Service Vulnerability

A vulnerability in the Border Gateway Protocol BGP enforce-first-as feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to trigger BGP peer flaps, resulting in a denial of service DoS condition...

CVE-2026-20033

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 specific Ethernet frames. An attacker cou...

CVE-2026-20048

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 vulnerability is due to improper processing when...

EUVD-2026-8668

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 vulnerability is due to improper processing when...

EUVD-2026-8665

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 specific Ethernet frames. An attacker cou...

CVE-2026-20033

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 specific Ethernet frames. An attacker cou...

CVE-2026-20033

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 specific Ethernet frames. An attacker cou...