Cisco Nexus 9000 Series Fabric Switches ACI Mode Elevation of Privilege Vulnerability

The Cisco Nexus 9000 Series Switches are modular and fixed port network switches designed for the data center.An elevation of privilege vulnerability exists in Cisco Nexus 9000 Series Fabric Switches ACI Mode, which can be exploited by an attacker to gain access to the underlying operating system...

Cisco Issues Critical Fixes for High-End Nexus Gear

Cisco Systems released six security patches tied to its high-end 9000 series networking gear ranging in importance from critical, high and medium severity. The most serious of the bugs patched by Cisco rated 9.1 out of 10 could allow a remote and unauthenticated adversary to read or write arbitra...

CVE-2021-1591

A vulnerability in the EtherChannel port subscription logic of Cisco Nexus 9500 Series Switches could allow an unauthenticated, remote attacker to bypass access control list ACL rules that are configured on an affected device. This vulnerability is due to oversubscription of resources that occurs...

CVE-2021-1583

A vulnerability in the fabric infrastructure file system access control of Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to read arbitrary files on an affected system. This vulnerability is due to improper acces...

Command injection

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient restrictions during the execution of a specific CLI command...

Improper access control

A vulnerability in the fabric infrastructure file system access control of Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to read arbitrary files on an affected system. This vulnerability is due to improper acces...

Race condition

A vulnerability in the Multi-Pod or Multi-Site network configurations for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an unauthenticated, remote attacker to unexpectedly restart the device, resulting in a denial of service DoS condition. This...

CVE-2021-1523

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in...

Design/Logic Flaw

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in...

CVE-2021-1591

CVE-2021-1591 affects Cisco Nexus 9500 Series Switches. The issue is in the EtherChannel port subscription logic where ACLs applied to port-channel interfaces can be oversubscribed, allowing an unauthenticated remote attacker to bypass ACL rules configured on the device. Cisco’s advisory (Cisco N...

CVE-2021-1591 Cisco Nexus 9500 Series Switches Access Control List Bypass Vulnerability

A vulnerability in the EtherChannel port subscription logic of Cisco Nexus 9500 Series Switches could allow an unauthenticated, remote attacker to bypass access control list ACL rules that are configured on an affected device. This vulnerability is due to oversubscription of resources that occurs...

CVE-2021-1586

CVE-2021-1586 affects Cisco Nexus 9000 Series Fabric Switches in ACI mode (Multi-Pod/Multi-Site). The flaw allows an unauthenticated, remote attacker to cause an unexpected device reboot, resulting in a DoS, by sending crafted TCP data to a specific port that is exposed on a public IP for the Mul...

CVE-2021-1586 Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability

A vulnerability in the Multi-Pod or Multi-Site network configurations for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an unauthenticated, remote attacker to unexpectedly restart the device, resulting in a denial of service DoS condition. This...

CVE-2021-1586 Cisco Nexus 9000 Series Fabric Switches ACI Mode Multi-Pod and Multi-Site TCP Denial of Service Vulnerability

A vulnerability in the Multi-Pod or Multi-Site network configurations for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an unauthenticated, remote attacker to unexpectedly restart the device, resulting in a denial of service DoS condition. This...

CVE-2021-1584 Cisco Nexus 9000 Series Fabric Switches ACI Mode Privilege Escalation Vulnerability

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient restrictions during the execution of a specific CLI command...

CVE-2021-1584

Cisco Nexus 9000 Series Fabric Switches operating in Application Centric Infrastructure (ACI) mode are affected by CVE-2021-1584. The flaw arises from insufficient restrictions during the execution of a specific CLI command, enabling an authenticated, local attacker with administrative privileges...

CVE-2021-1584 Cisco Nexus 9000 Series Fabric Switches ACI Mode Privilege Escalation Vulnerability

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient restrictions during the execution of a specific CLI command...

CVE-2021-1583 Cisco Nexus 9000 Series Fabric Switches ACI Mode Arbitrary File Read Vulnerability

A vulnerability in the fabric infrastructure file system access control of Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to read arbitrary files on an affected system. This vulnerability is due to improper acces...

CVE-2021-1583 Cisco Nexus 9000 Series Fabric Switches ACI Mode Arbitrary File Read Vulnerability

A vulnerability in the fabric infrastructure file system access control of Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to read arbitrary files on an affected system. This vulnerability is due to improper acces...

CVE-2021-1523

CVE-2021-1523 affects Cisco Nexus 9000 Series Fabric Switches in ACI mode . The issue stems from mishandling of ingress TCP traffic to a specific port on a Switched Virtual Interface (SVI), allowing an unauthenticated remote attacker to trigger a queue wedge on a leaf switch. The wedge can cause ...