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-2025-20311

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic. This vulnerability is due to improper handling of crafte...

CVE-2025-20311

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic. This vulnerability is due to improper handling of crafte...

Cisco IOS XE Software for Catalyst 9000 Series Switches Denial of Service Vulnerability

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic. This vulnerability is due to improper handling of crafte...

The vulnerability of the monitoring function for the operational status of the Cisco NX-OS operating system in Cisco Nexus 3000 and Nexus 9000 switches stems from deficiencies in access control. This allows a malicious actor to trigger a service failure.

The vulnerability of the monitoring function for the operational status of the Cisco NX-OS operating system on Cisco Nexus 3000 and Nexus 9000 switches is related to deficiencies in access control. Exploiting this vulnerability could allow a malicious actor to cause service interruptions by sendi...

CVE-2023-35921

A vulnerability has been identified in SIMATIC MV540 H All versions V3.3.4, SIMATIC MV540 S All versions V3.3.4, SIMATIC MV550 H All versions V3.3.4, SIMATIC MV550 S All versions V3.3.4, SIMATIC MV560 U All versions V3.3.4, SIMATIC MV560 X All versions V3.3.4. Affected devices cannot properly...

The vulnerability of the Cisco Wireless LAN Controller 2100 software allows a malicious individual to cause service failure.

The vulnerability in Cisco Wireless LAN Controller WLC devices allows malicious actors to trigger a service failure device reboot by using specially crafted Ethernet frames based on 802.11 protocols...

The vulnerability of the Cisco Wireless LAN Controller 4400 software allows a malicious individual to cause service failure.

The vulnerability in Cisco Wireless LAN Controller WLC devices allows malicious actors to trigger a service failure device reboot by using specially crafted Ethernet frames based on 802.11 protocols...