CVE-2020-3170 Cisco NX-OS Software NX-API Denial of Service Vulnerability

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could...

CVE-2020-3172

CVE-2020-3172 affects Cisco FXOS Software and Cisco NX-OS Software via the Cisco Discovery Protocol. Insufficient validation of CDP packet headers allows an unauthenticated, Layer-2 adjacent attacker to send a crafted CDP packet, causing a buffer overflow that could let the attacker execute arbit...

CVE-2020-3172 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

CVE-2020-3172 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

CVE-2020-3174 Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...

CVE-2020-3174

Cisco NX-OS Software Anycast Gateway vulnerability (CVE-2020-3174) allows an unauthenticated, adjacent attacker to corrupt ARP tables by sending a malicious gratuitous ARP (GARP) on the local subnet due to improper validation. Real-world impact is ARP entry corruption for nonlocal IPs, potentiall...

CVE-2020-3174 Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...

CVE-2020-3175

Cisco’s CVE-2020-3175 affects Cisco NX-OS Software on Cisco MDS 9000 Series Multilayer Switches. The issue is due to improper resource usage control in the resource handling system, allowing an unauthenticated, remote attacker to trigger a denial of service by sending traffic to the mgmt0 interfa...

CVE-2020-3165 Cisco NX-OS Software Border Gateway Protocol MD5 Authentication Bypass Vulnerability

A vulnerability in the implementation of Border Gateway Protocol BGP Message Digest 5 MD5 authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD...

CVE-2020-3165 Cisco NX-OS Software Border Gateway Protocol MD5 Authentication Bypass Vulnerability

A vulnerability in the implementation of Border Gateway Protocol BGP Message Digest 5 MD5 authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD...

CVE-2020-3165

Cisco NX-OS Software CVE-2020-3165 is a BGP MD5 authentication bypass in which MD5 authentication can be bypassed if the peer does not have MD5 configured while the NX-OS device does, and the VRF name exceeds 19 characters. An unauthenticated, remote attacker could establish a BGP session with th...

Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

Cisco NX-OS Software NX-API Denial of Service Vulnerability

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could...

Cisco MDS 9000 Series Switches Denial of Service Vulnerability

A vulnerability in the resource handling system of Cisco NX-OS Software for Cisco MDS 9000 Series Multilayer Switches could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to improper resource usage control. An...

Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol ARP entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper...

Cisco NX-OS Software Border Gateway Protocol MD5 Authentication Bypass Vulnerability

A vulnerability in the implementation of Border Gateway Protocol BGP Message Digest 5 MD5 authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD...

Cisco Software Maintenance Update Enumeration

It is possible to enumerate the installed Cisco Software Maintenance Updates on the remote Cisco device using the 'show install active' or 'show version' command. TRUSTED...

Cisco NX-OS Software Cisco Discovery Protocol Denial of Service Vulnerability (cisco-sa-20200205-fxnxos-iosxr-cdp-dos)

According to its self-reported version, the Cisco NX-OS Software is affected by a denial of service vulnerability within the Cisco Discovery Protocol due to missing a check when processing protocol messages. An unauthenticated, adjacent attacker can exploit this to cause the device to reboot...

Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution Vulnerability (cisco-sa-20200205-nxos-cdp-rce)

According to its self-reported version, the Cisco NX-OS System Software is affected by a remote code execution vulnerability within the Cisco Discovery Protocol due to improper validation of input. An unauthenticated, adjacent attacker can exploit this to bypass authentication and execute arbitra...

Cisco Releases Security Updates for Multiple Products

Cisco has released security updates to address vulnerabilities in multiple products. A remote attacker could exploit these vulnerabilities to take control of an affected system. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories webpage. The Cybersecurity and...