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 Cisco NX-OS Software Denial of Service Vulnerability

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...

CVE-2026-20048 Cisco NX-OS Software SNMP Denial of Service Vulnerability

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...

CVE-2026-20048

Cisco Nexus 9000 Series Fabric Switches (ACI mode) SNMP subsystem is vulnerable to crafted SNMP requests, causing kernel panic, reload, and DoS. The issue stems from improper SNMP request parsing. Exploitation requires valid credentials: read-only SNMP community strings for SNMPv1/2c, or valid SN...

CVE-2026-20010 Cisco Nexus 3000 and 9000 Series Switches Link Layer Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific...

CVE-2026-20010

Cisco NX-OS LLDP processing is vulnerable to an unauthenticated adjacent attacker who can craft LLDP frames to restart the LLDP process and cause a device reload, resulting in DoS. The issue stems from improper handling of specific LLDP frame fields; exploitation requires direct Layer 2 access to...

CVE-2026-20010 Cisco Nexus 3000 and 9000 Series Switches Link Layer Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific...

CVE-2026-20010

A vulnerability in the Link Layer Discovery Protocol LLDP feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific...

CVE-2026-20051

Summary: CVE-2026-20051 affects Cisco Nexus 3600 Series switches and Nexus 9500-R Series platforms, where a logic error in Ethernet VPN (EVPN) Layer 2 ingress packet processing can be triggered by a crafted Layer 2 frame. An unauthenticated, adjacent attacker could induce a Layer 2 traffic loop t...

CVE-2026-20051 Cisco Nexus 3600-R and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability

A vulnerability with the Ethernet VPN EVPN Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches and Cisco Nexus 9500-R Series Switching Platforms could allow an unauthenticated, adjacent attacker to trigger a Layer 2 traffic loop. This vulnerability is due to a logic error when...

CVE-2026-20051

A vulnerability with the Ethernet VPN EVPN Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches and Cisco Nexus 9500-R Series Switching Platforms could allow an unauthenticated, adjacent attacker to trigger a Layer 2 traffic loop. This vulnerability is due to a logic error when...

Cisco UCS Manager Software Privilege Escalation Vulnerability

A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system. This vulnerability exists because unnecessary privileges are given to the...

Cisco Nexus 9000 Series Fabric Switches in ACI Mode SNMP Denial of Service Vulnerability

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...

Cisco Nexus 9000 Series Fabric Switches in ACI Mode Denial of Service Vulnerability

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...

Cisco NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific...

Cisco Nexus 3600 and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability

A vulnerability with the Ethernet VPN EVPN Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches and Cisco Nexus 9500-R Series Switching Platforms could allow an unauthenticated, adjacent attacker to trigger a Layer 2 traffic loop. This vulnerability is due to a logic error when...

PT-2026-21949

Name of the Vulnerable Software and Affected Versions Cisco Nexus 9000 Series Fabric Switches versions affected versions not specified Description A flaw exists in the Simple Network Management Protocol SNMP subsystem of Cisco Nexus 9000 Series Fabric Switches operating in ACI mode. This issue...

Cisco Nexus 3600 Platform Switches和Cisco Nexus 9500 Series Switches 安全漏洞

The Cisco Nexus 3600 Platform Switches and the Cisco Nexus 9500 Series Switches are products of the American company Cisco. The Cisco Nexus 3600 Platform Switches are part of the 3600 series of platform switches. The Cisco Nexus 9500 Series Switches are part of that series as well. Both the Cisco...

CVE-2026-20051: Use of Uninitialized Variable

A vulnerability with the Ethernet VPN EVPN Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches and Cisco Nexus 9500-R Series Switching Platforms could allow an unauthenticated, adjacent attacker to trigger a Layer 2 traffic loop. This vulnerability is due to a logic error when...